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Northwest Houston's Trusted General Contractor

Built Better.
Managed Smarter.

Every GT Holdings client gets their own dedicated web portal — track projects in real time, access documents, upload photos, and manage your home from one place. This is remodeling and home care built for the way you actually live.

Exclusive Client Web Portal For All Clients
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Licensed & Insured
Serving Northwest Houston
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500+
Projects Completed
5.0 ★
Google Rating
10+
Years of Experience
100%
Licensed & Insured
12hr
Emergency Response
Built Right. Managed Right.

Any Size Project Deserves
Proper Management.

From drywall repairs to full home renovations, GTH brings professionalism and structure to every job.

We believe great craftsmanship deserves organized execution.

Clear estimates
Reliable scheduling
Clean job sites
Professional crews
Organized communication

Whether it's a small repair or a major remodel, your home is handled with care.

GTH crew framing a covered patio addition in Northwest Houston
Luxury bathroom renovation by GT Holdings — clawfoot tub, chandelier, marble tile
Est. Houston, TX
Who We Are

A Trusted Name in
Northwest Houston

GT Holdings & Construction was built on a simple belief: every homeowner deserves a contractor they can fully trust. We serve Cypress, Spring, Tomball, Klein, Champions, The Woodlands, and surrounding communities.

When hurricanes battered Houston and the February freeze tested every pipe in the city, our team was there — not just as contractors, but as neighbors helping neighbors recover. That's the standard we hold ourselves to every day.

Integrity

Transparent pricing, honest timelines, no surprises.

Precision

Every detail matters. We measure twice and cut once.

Community

Northwest Houston isn't just where we work — it's home.

Care

We treat your home the way we'd treat our own.

The People Behind the Work

Meet Our Team

The backbone of GT Holdings — skilled professionals who care about your home as much as you do.

Thano Triadafilopoulos — Founder & Owner
Thano Triadafilopoulos
Founder & Owner

Family man, community leader, and the driving force behind GT Holdings. Thano handles daily operations while coaching youth sports, volunteering at local schools, and serving as HOA president in Klein, TX. Supported by his wife Nikki and three sons.

Ownership Vision Community
Ernesto Lopez — Foreman
Ernesto Lopez
Foreman

One of our longest-tenured foremen with 20+ years in home building. Married father of four — two serving in the armed forces. Skilled in concrete, framing, fencing, roofing, stone, tile, painting, iron works, drywall, plumbing, and electrical.

Experience Leadership Precision
Jorge Velazquez — Foreman
Jorge Velazquez
Foreman

A vital part of our success and loving father of four. Jorge brings skill and heart to every project. Expert in plumbing, electrical, drywall, painting, framing, flooring, and tile work. Known for his gumbo, too.

Versatility Reliability Heart
The GTH Crew
The GTH Crew
Our Extended Team

Behind every GT Holdings project is a dedicated crew committed to delivering quality through teamwork and attention to detail. Many more skilled hands make the work possible.

Teamwork Dedication Quality
Our Services

We Specialize in Renovations That
Transform Your Space

We work with you to bring your vision to life. Here's what we do.

01

Kitchen Remodels

Complete kitchen transformations — custom cabinetry, countertops, flooring, and fixtures designed around how you actually live.

02

Bathroom Remodels

Spa-worthy bathrooms that blend beauty with function. Walk-in showers, custom tile work, modern vanities, and more.

03

Patio Covers & Outdoor Kitchens

Extend your living space outdoors with custom patio covers, pergolas, and fully equipped outdoor kitchens.

04

Painting & Drywall

Exterior and interior painting, drywall repair and finishing, cabinetry refinishing, and door restoration.

05

Flooring

Hardwood, engineered, luxury vinyl plank, tile, laminate, and carpet — expert installation that transforms every room.

06

Decks & Fences

Custom deck builds, fence installation, and repairs — built to last and designed to complement your home.

07

Carpentry

Custom cabinets, wainscoting, paneling, trims, crown molding, baseboards, and built-ins crafted with precision.

08

Electrical

Panel replacements, wiring, troubleshooting, and full electrical upgrades handled safely and to code.

09

Plumbing

Rough-in valves and pipes, waterproofing, drains, and full plumbing installations and repairs.

10

Concrete & Framing

Foundations, slabs, structural framing, and concrete work built to support your project from the ground up.

11

Demolition & Haul Away

Complete teardowns, selective demolition, debris removal, and land clearing — handled efficiently and safely.

12

Countertop Fabrication & Installation

Quartz, granite, marble, and butcher block — custom-measured, fabricated, and installed for kitchens, bathrooms, and islands.

Our Work

Craftsmanship You Can See

Every project is a collaboration built on precision and care. Here's a glimpse of what we do — hover over any photo to learn more.

Saltillo to Calacatta — Full Kitchen Transformation

Before Outdated kitchen with honey oak cabinets, terracotta Saltillo tile flooring with blue diamond accents, and tile countertops before remodel

Saltillo & Oak Original

A spacious but dated kitchen featuring honey oak cabinetry with leaded glass inserts, terracotta Saltillo tile flooring with blue diamond accents, and matching tile countertops.

Kitchen Remodel
Before Wide-angle view of a dated kitchen with oak raised-panel cabinets, Saltillo tile countertops and floors, fluorescent box lighting, and an arched window

Terra Cotta Time Capsule

The full expanse of oak raised-panel cabinetry, Saltillo tile countertops with matching flooring, and dated fluorescent box light fixtures. A beautiful arched window hints at the potential this space holds.

Kitchen Remodel
Before Overhead-angle view of the original kitchen showing the full layout of oak cabinets, Saltillo tile surfaces, and fluorescent ceiling panels

Before the Transformation

A bird's-eye perspective captures the full scope of the original kitchen, showcasing the continuous run of oak cabinetry, wall-to-wall Saltillo tile, and boxy fluorescent ceiling panels.

Kitchen Remodel
During Kitchen mid-renovation with bare concrete floors, new unfinished cabinet boxes being installed, exposed ceiling framing, and construction tools

Framework in Progress

The kitchen gutted down to the studs and concrete slab, with new custom cabinet boxes being set in place for the island and perimeter layout.

Kitchen Remodel
After Completed remodeled kitchen with white raised-panel cabinets, quartz countertops, dark hardwood flooring, and a glass pendant light over the island

Bright White Revival

White raised-panel cabinetry, calacatta quartz countertops, refinished dark hardwood floors, and elegant glass pendant lighting over the new island.

Kitchen Remodel
After Fully remodeled kitchen viewed from the island looking toward large windows, featuring white cabinets, calacatta quartz island, stainless steel appliances, and gray accent walls

Calacatta & Glass Elegance

White raised-panel cabinets line the perimeter alongside a calacatta quartz island with bar seating, stainless steel appliances, and an arabesque tile backsplash.

Kitchen Remodel
After Close-up of the remodeled kitchen countertop area showing white arabesque backsplash tile, quartz counters, pot filler, gas cooktop, and glass pendant lights

Arabesque & Quartz Detail

White arabesque tile backsplash, calacatta quartz countertops with dramatic veining, a wall-mounted pot filler beside the gas cooktop, and brushed nickel hardware.

Kitchen Remodel

Herringbone & Waterfall Island Kitchen

Before A dated kitchen with white raised-panel cabinets, dark brown countertops, a diamond-pattern tile backsplash, a small center island, and beige ceramic tile flooring

Classic Kitchen, Before

White raised-panel cabinets with dark laminate countertops, a diamond-pattern tile backsplash, black built-in oven, small center island, and beige ceramic tile flooring.

Kitchen Remodel
During A kitchen mid-renovation showing unfinished raw wood cabinet boxes for the island and perimeter, exposed ceiling with recessed light rough-ins

Taking Shape

New custom cabinet boxes installed in raw birch plywood, with a large L-shaped island frame taking form. Recessed lighting rough-ins visible in the ceiling.

Kitchen Remodel
After A beautifully renovated kitchen featuring white shaker cabinets, a large waterfall-edge quartz island with bar seating, herringbone tile backsplash, and wood-look tile flooring

Herringbone & Quartz Kitchen

White shaker cabinetry with oil-rubbed bronze hardware, a sweeping quartz waterfall island with wrought-iron bar stools, herringbone marble backsplash, and wood-look porcelain tile flooring.

Kitchen Remodel

Espresso & Ambient Glow Kitchen

Before A dimly lit kitchen with antiqued cream raised-panel cabinets, a dark-stained island with granite countertops, and mixed-tone wood flooring

Glazed Cream Kitchen, Before

Antiqued cream raised-panel cabinetry with crown molding, a dark-stained island base with brown granite countertops and built-in cooktop.

Kitchen Remodel
Before A closer view of the dated kitchen showing cream glazed cabinets, granite island with cooktop, and stainless steel appliances

Island Cooktop, Before

The existing kitchen island with brown granite countertop and built-in electric cooktop, flanked by cream glazed perimeter cabinets.

Kitchen Remodel
After A dramatically transformed kitchen with dark espresso shaker cabinets, white quartz countertops, LED accent lighting, and a tray ceiling

Espresso & Quartz Kitchen

Rich espresso-stained shaker cabinets with frosted glass uppers, bright white quartz countertops, warm LED accent lighting, and a tray ceiling with crown molding.

Kitchen Remodel
After The completed espresso-toned kitchen from the opposite angle, showcasing the large quartz island with gas cooktop and frosted glass cabinet doors

Ambient Glow Kitchen

A wide quartz-topped island with integrated gas cooktop anchors the space, surrounded by espresso shaker cabinetry with frosted glass uppers and warm LED accent lighting.

Kitchen Remodel

Rustic Modern — Edison & Dark Quartz Kitchen

Before A spacious but outdated kitchen with honey oak cabinets, white laminate countertops, fluorescent box lighting, and beige ceramic tile flooring

Oak & Tile Kitchen, Before

Honey oak raised-panel cabinetry with brass hardware, white laminate countertops, a small island with gas cooktop, and beige ceramic tile flooring.

Kitchen Remodel
Before An alternate angle of the dated oak kitchen showing the small cooktop island, fluorescent box light, and open layout

Open Layout, Before

The existing open-plan kitchen from the opposite angle, showing the oak island with built-in gas cooktop, white laminate peninsula counter, and ceramic tile flooring.

Kitchen Remodel
After A fully remodeled kitchen with white shaker cabinets, dark marbled quartz countertops, a rustic wood-beam chandelier with Edison bulbs, and dark porcelain tile flooring

Rustic Modern Kitchen

Floor-to-ceiling white shaker cabinetry, dramatic dark marbled quartz countertops and full-height backsplash, a rustic reclaimed wood beam chandelier with Edison bulbs, and dark porcelain tile flooring.

Kitchen Remodel
After The completed white and dark quartz kitchen from the island perspective, showing the expansive countertop with gas cooktop and wood-beam Edison bulb chandelier

Wood & Quartz Elegance

A massive dark marbled quartz island with integrated gas cooktop, complemented by white shaker perimeter cabinets and a rustic wood-beam Edison bulb light fixture.

Kitchen Remodel

Spa-Inspired Master Bath Suite

Before Dated master bathroom with beige tile surround, oval soaking tub, dark glass-door shower enclosure, and plantation shutters

Classic Master Bath Before

Oval soaking tub with beige tile surround and brass fixtures, adjacent to a dark glass-enclosed shower. Plantation shutters frame the bay window alcove.

Bathroom Renovation
Before Outdated L-shaped bathroom vanity with white cabinetry, granite countertops, brass hardware, and a seated makeup area

Original Vanity & Shower View

L-shaped white vanity with granite countertops, brass hardware, and a seated vanity area with wrought-iron bench.

Bathroom Renovation
After Renovated master bathroom featuring a frameless glass shower with wood-look tile, white subway tile soaking tub surround, and a crystal drum chandelier

Modern Spa-Inspired Retreat

Frameless glass shower with wood-look porcelain tile and pebble stone floor, paired with a white subway tile tub surround and marble countertop.

Bathroom Renovation
After Remodeled L-shaped dual vanity with charcoal blue cabinetry, white quartz countertops, and oil-rubbed bronze fixtures

Charcoal Blue Vanity Suite

Custom L-shaped vanity with charcoal blue cabinetry, white quartz countertops, and oil-rubbed bronze faucets. Framed mirrors with modern multi-light sconces.

Bathroom Renovation

Walk-In Shower & Skylit Soaking Tub

Before Existing bathroom with a glass shower door, beige stone tile surround, and granite-wrapped soaking tub

Granite & Stone Original Bath

Glass-door shower with beige stone tile and a built-in bench, adjacent to a granite-wrapped soaking tub.

Bathroom Renovation
Before Bathroom gutted to exposed framing, plumbing rough-ins, and subfloor during demolition

Full Demolition In Progress

Complete teardown revealing exposed wall framing, plumbing rough-ins, and concrete subfloor prepared for a full rebuild.

Bathroom Renovation
After Renovated walk-in shower with large-format linear tile, river rock pebble floor, chrome dual showerheads, and mosaic accent niche

Walk-In Shower Transformation

Spacious walk-in shower with large-format linear porcelain tile, a river rock pebble stone floor, and a mosaic tile accent niche with chrome dual showerheads.

Bathroom Renovation
After Renovated bathroom with a jetted soaking tub, light gray porcelain tile surround, skylights, and mosaic tile accents

Skylit Soaking Tub Oasis

Jetted soaking tub set within a light gray porcelain tile surround, bathed in natural light from overhead skylights with mosaic tile accents.

Bathroom Renovation

Marble & Crystal Chandelier Master Bath

Before Dated master bathroom with a corner jetted tub, glass block window, and curved glass block shower wall

Glass Block Era Original

Corner jetted tub beneath a glass block window with arched transom, flanked by a white single-sink vanity and a curved glass block shower partition.

Bathroom Renovation
Before Original master bathroom vanity area with white cabinetry, marble countertop, and large frameless mirror

Original Vanity & Layout

Extended white vanity with marble countertop, single undermount sink, and a seated makeup area beneath a large frameless mirror.

Bathroom Renovation
After Luxuriously remodeled master bathroom with a white clawfoot tub, crystal chandelier, marble tile, and frameless glass walk-in shower

Marble & Chandelier Luxury

Freestanding white clawfoot tub with brass floor-mount filler beneath a crystal chandelier, alongside a frameless glass walk-in shower with marble tile walls.

Bathroom Renovation
After Remodeled L-shaped double vanity with navy blue shaker cabinetry, white quartz countertops, and brass hardware

Navy & Gold Vanity Suite

Custom L-shaped double vanity with navy blue shaker cabinetry, white quartz countertops, and brushed brass hardware with modern glass globe vanity sconces.

Bathroom Renovation

Contemporary Marble Slab Statement Bath

Before Existing bathroom with a white bathtub-shower combo, subway tile surround, and dark tile flooring

Standard Tub-Shower Before

Basic bathtub-shower combination with white subway tile surround, a frameless glass panel, and brushed nickel fixtures.

Bathroom Renovation
Before Dated bathroom with a white double-sink vanity, frameless wall mirror, and dark tile flooring

Original Double Vanity View

White double-sink vanity with a solid surface countertop beneath a large frameless wall mirror and a multi-shade vanity light.

Bathroom Renovation
After Renovated walk-in shower with dramatic white marble-look porcelain slab walls, frameless glass enclosure, and chrome fixtures

Marble Slab Shower Statement

Floor-to-ceiling white marble-look porcelain slab walls with dramatic gray veining inside a frameless glass walk-in shower with chrome fixtures.

Bathroom Renovation
After Remodeled bathroom vanity with a floating white cabinet, marble-look porcelain slab wall, and open shelving

Floating Vanity & Marble Walls

Sleek floating white vanity with a vessel-style sink against a dramatic marble-look porcelain slab feature wall with contemporary coastal accents.

Bathroom Renovation

Poolside Covered Patio & Stone Outdoor Kitchen

Before Wood framing for a covered patio structure under construction behind a two-story brick home

Patio Framing Begins

Early framing stage of a covered patio addition on a brick home, with structural posts and roof trusses taking shape in the backyard.

Covered Patio
Before Partially framed covered patio structure with scaffolding and exposed roof beams behind a brick home

Structural Framework Rising

The patio cover frame continues to take form with scaffolding in place, showing the scale of the addition against the existing roofline.

Covered Patio
Before Close-up view of exposed wood roof trusses and rafters for a covered patio under construction

Roof Trusses in Place

Custom-cut roof trusses and rafters are set and ready for decking, framing out the full footprint of the covered patio addition.

Covered Patio
After Crew members applying stone veneer to an outdoor kitchen bar under a newly roofed covered patio

Stone & Shingle Details

The crew installs natural stone veneer on the outdoor kitchen bar as the shingled hip roof nears completion.

Covered Patio
After Completed covered patio with stone outdoor kitchen, cedar posts, and a pool in the foreground

Poolside Patio Revealed

Completed covered patio addition featuring cedar posts, a stone-clad outdoor kitchen bar, and recessed lighting beside the pool and spa.

Covered Patio
After Interior view of a finished outdoor kitchen under a covered patio with stone veneer, built-in grill, and refrigerator

Outdoor Kitchen Complete

Fully equipped outdoor kitchen beneath the covered patio, featuring a built-in grill, stainless steel refrigerator, stone veneer accents, and an oversized ceiling fan.

Covered Patio

Second-Story Room & Spa Bathroom Addition

Before Second-story room addition framed in wood above an existing garage

Second-Story Framing

A new second-story room takes shape above the existing garage, with wall framing and a gabled roof structure rising over the driveway.

Room Addition
Before Aerial view of exposed roof rafters and sheathing on a second-story room addition under construction

Roof Rafters & Sheathing

View from above showing the roof framing and partial sheathing, with the new structure tying into the existing roofline.

Room Addition
Before Interior of a second-story room addition during rough-in phase with exposed wall studs, plumbing, and electrical wiring

Rough-In Progress

Interior of the new second-story space during the rough-in phase, with framing, plumbing lines, electrical wiring, and recessed lighting cans.

Room Addition
After Completed second-story room addition with siding and a window, viewed from the driveway

Addition Takes Shape

The second-story addition above the garage is now fully enclosed with matching siding, a new window, and clean trim work.

Room Addition
After Elevated view of a completed second-story room addition with new shingle roof matching the existing home

Rooftop Perspective

An elevated angle reveals the finished addition with new shingle roofing that matches the original home.

Room Addition
After Finished bathroom inside a second-story room addition featuring a corner jetted tub and glass-enclosed shower

Spa-Worthy Bathroom

The completed interior features a luxurious bathroom with a corner jetted tub, frameless glass shower with pebble tile floor, and wood-look plank tile.

Room Addition

Grand Gabled Patio — Stained Beam & Stone

Before Rear view of a two-story home with a small existing patio and green lawn before a covered patio addition

Backyard Before Build

The home's original rear elevation with a modest covered porch and open backyard — a blank canvas ready for a large-scale patio addition.

Covered Patio
Before Wide backyard view of a two-story home with a small existing patio and a single wood post marking the start of construction

Open Yard, Big Plans

A wide-angle view of the spacious backyard before construction, with a single support post marking where the new covered patio will stand.

Covered Patio
During Construction crew building a large gabled patio roof frame with workers on top of the structure

Crew Raising the Ridge

The crew frames the gabled patio roof structure, with team members working from ladders and atop the ridge while another cuts lumber below.

Covered Patio
During Workers installing roof rafters on a large gabled covered patio frame attached to the back of a two-story home

Rafters Going Up

Roof rafters are set into place as the crew works along the length of the new patio structure, tying the gabled frame into the existing home.

Covered Patio
After Completed large gabled covered patio with stained wood ceiling, exposed beam trusses, stone column bases, and composite decking

Grand Gable Unveiled

The finished covered patio features a dramatic open gable with stained wood ceiling and exposed beam trusses, stone-clad column bases, and composite decking.

Covered Patio
After Furnished covered patio with a large sectional sofa, outdoor chairs, stone columns, stained beam ceiling, and string lights

Outdoor Living, Perfected

The completed patio in full use with a sectional sofa, Adirondack chairs, and string lights beneath the stained beam ceiling.

Covered Patio
Trust Built Locally

Trusted by Homeowners
Across Northwest Houston

★★★★★
5.0
17 Reviews on Google
★★★★★

"The GT team was amazing! The work was completed on time and on budget — they even dealt with a number of last minute requests. We could not be happier with the final results. We will definitely use them again in the future."

Brian Nupnau
Google Review · 16 weeks ago
★★★★★

"We hired Thano to remodel our master bathroom, and the results completely exceeded our expectations. Their team was professional, detail-oriented, and easy to work with. They communicated every step clearly and stayed right on schedule. I highly recommend GT Holdings."

Chris Bryant
Google Review · 20 weeks ago
★★★★★

"We could not say enough great things about Thano, Jorge and team. Full house remodel — trim paint, 3.5 bathrooms, fireplace, second floor flooring. Communication was spot on, timelines were exceeded. We will absolutely use them again and refer them to all our family."

Kelsey Day
Google Review · 24 weeks ago

Homeowners choose GTH for our responsiveness, professionalism, and quality of work. We're proud to serve families throughout our local communities.

Read All Our Reviews on Google
A Better Client Experience

A Private Dashboard Designed
to Keep Your Home Organized

Every GTH client receives access to the GTH Client Dashboard.

Inside, you can:

Submit service requests online, anytime
Track appointments and project timelines
Access estimates and invoices in one place
Review your Property Health Overview
Maintain a structured, organized home record
GTH Client Dashboard

Your Home. Organized.

Service request submitted & confirmed
Appointment scheduled: Feb 28
Estimate ready for review
Property Health Score: 82/100
HVAC service recommended in 30 days

No lost paperwork.

No miscommunication.

No guesswork.

Just clarity.

★ Signature Offering
Home Management

Schedule Your Property
Health Inspection Today

Most homeowners don't know what's failing until it's an emergency. Our Property Health Inspection gives you a complete assessment of your home's condition — roof to foundation — so you can plan ahead instead of react.

The average homeowner spends 3x more on emergency repairs than they would on planned maintenance.
Don't wait for the leak. Know your home's health now.

Roof & Exterior

Condition, age, drainage, and storm readiness

Plumbing

Pipes, fixtures, water heater, and leak indicators

HVAC Systems

Efficiency rating, filter status, and service timeline

Interior Condition

Walls, flooring, doors, windows, and insulation

82
/ 100
Property Health Score
Your home is in good shape. Two areas recommended for attention this season.
Roof & Exterior GOOD
HVAC System REVIEW
Plumbing GOOD
Interior MONITOR
Follow Our Work

Active Projects. Real Homes.
Real Results.

See our latest remodeling and repair projects throughout Northwest Houston.

Farmhouse kitchen remodel — white cabinets, wood island, quartz countertops
Modern kitchen remodel with blue island and gold pendants
Luxury bathroom with clawfoot tub, chandelier, and marble tile
Navy vanity suite with dual sinks and gold fixtures
Luxury marble walk-in shower with gold fixtures and glass enclosure
Completed custom pergola with wood top and stone columns

@gthconstruct

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Let's Get Started

Ready to Get Started?

Whether it's a small repair or a major renovation, we're ready to help.

Call Us
713-534-7144
Email
team@gthconstruct.com
Service Area
Northwest Houston, TX