A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateTrusted Home Addition Contractor for Fort Worth Homeowners
Home addition costs in Fort Worth typically run $160,000 to $380,000 for a full project, with smaller room additions like bathrooms or bedrooms starting around $85,000. That’s a big range, and it’s why we give you a written price before any work begins, no exceptions. Since 2006, Miles Hartwell and the team at Sutton ADU Fort Worth have handled room additions, second-story builds, and detached ADUs across Tarrant County under the Threshold Verified standard: every technician background-checked, identity-verified, and photo-badged before they ever step onto your property. Call (682) 255-2399 and a real person answers, ready to talk through your lot, your budget, and what’s actually possible.
Sunroom Addition
A Sunroom Addition gives you usable living space at roughly 40 to 60 percent of the cost of a traditional room addition, typically running $55,000 to $120,000 in Fort Worth depending on whether you’re going with a prefab glass structure or a stick-built room with insulation and ductwork. We see a lot of homeowners in Benbrook and Keller choose sunrooms when they want morning light without committing to a full foundation pour. A Fort Worth Home Addition Contractor like Sutton ADU Fort Worth handles the foundation work, glazing choices, and tie-in to your existing roofline, and the written quote you get covers all of it before we start.
Foundation and Site Prep
Fort Worth’s clay soil expands and contracts enough to crack a poorly set slab within five years. We spec the foundation for the sunroom’s actual load and your lot’s soil conditions, not just a generic slab.
Glazing and Climate Control
Texas sun is brutal in August, so we recommend low-E glass and proper ventilation on every sunroom. You’ll get honest guidance on which glazing package fits your budget instead of a surprise upgrade charge later.
Second Story Addition Contractor
A Second Story Addition Contractor handles the engineering-heavy work of building up when your lot won’t allow building out, with full second-story additions in Fort Worth typically running $180,000 to $340,000 before finishes. We’ve done second-story builds in Arlington neighborhoods where setbacks leave no room to expand the footprint, and in Mansfield where the view from the upper floor is the whole point. Sutton ADU Fort Worth starts every second-story project with a structural assessment of your existing foundation and framing, because some 1970s-era homes in White Settlement need reinforcement before they can carry new weight.
Structural Assessment First
Before we price anything, we check the foundation, load-bearing walls, and existing roof framing. That’s what determines whether you’re looking at a straightforward build or whether we need to add beams and piers first.
Stair Placement and Flow
Cutting into the first floor for a stairwell changes how your whole house lives. We walk through three or four stair placement options with you, showing how each affects light, traffic, and resale value in Fort Worth’s market.
Garage Addition Contractors
Garage Addition Contractors build attached or detached garages ranging from a simple $45,000 single bay to $140,000 for a two bay structure with a workshop or an ADU above it. Detached garage additions are popular in Hurst and Watauga where homeowners want boat or RV storage that doesn’t chew into the main house footprint. Sutton ADU Fort Worth pulls the permits, pours the slab with proper drainage away from the structure, and matches the exterior so the new garage doesn’t look bolted on.
Slab and Drainage Design
Fort Worth’s occasional heavy rain means garage slabs need correct slope and an apron that directs water away from the door. We pour to your lot’s specific grade, not a template.
Detached Versus Attached
An attached garage trades yard space for convenience and is usually cheaper per square foot. A detached garage gives you future ADU potential above the bays, which some Forest Hill homeowners use as a rental or a mother-in-law suite.
Bathroom Addition Contractor
A Bathroom Addition Contractor adds a full or half bath to a home that’s short on facilities, with Fort Worth bathroom additions typically landing between $42,000 and $95,000 depending on whether you’re adding a powder room or a full bath with a tub, walk-in shower, and tile work. Older homes in Fort Worth’s Fairmount district often have one bath for three bedrooms, and we see a lot of families in North Richland Hills adding a second bath rather than moving. Sutton ADU Fort Worth handles the plumbing rough-in, waterproofing, venting, and finishes, with the price for each line item written down before demo starts.
Wet Wall Planning
Placing the new bath near existing plumbing stacks saves thousands on drain line runs. We map your existing pipes first and show you where the new bath makes financial sense, then where you want it aesthetically.
Waterproofing Standards
A leaking shower pan will rot a subfloor in two years. Our written price includes full waterproofing to code, and the 365-Day Done Right Promise covers the workmanship if anything fails in that first year.
Bedroom Addition Contractor
A Bedroom Addition Contractor builds additional sleeping rooms, with Fort Worth bedroom additions typically running $65,000 to $150,000 depending on size, foundation type, and whether you’re adding a closet and en suite bath at the same time. Growing families in Everman and Benbrook often ask us about a bedroom addition before listing their house, because the per-square-foot return on bedrooms in Tarrant County’s market beats most other upgrades. Sutton ADU Fort Worth designs the addition so rooflines, window placement, and hallways feel like they were always part of the house, not bolted on.
Egress and Code Requirements
Every bedroom needs a code-compliant egress window for fire safety, and in Fort Worth that means specific size and sill height requirements. We handle those details in the plan so you don’t get flagged at inspection.
Hallway and Flow Integration
Adding a bedroom at the end of a hallway changes how the whole floor plan circulates. We show you three layout options with simple line drawings so you can see the impact on your daily routine before anything gets framed.
Brands We Service
We work with the major prefab and modular ADU brands, and we’re honest about which one fits your lot and budget. Dvele units appeal to Fort Worth homeowners who want a high-performance, energy-efficient shell with a more architectural look, and we handle the site prep, foundation, utility hookups, and interior finish for their models. Boxabl units are the cheapest entry point at roughly $60,000 to $90,000 for the base unit, and we’re experienced with the foundation requirements their fold-out design demands.
Mighty Buildings panels arrive pre-cut, which shortens framing time on tight Fort Worth lots where a traditional crew would struggle with staging. Whether you have a Mighty Buildings order in progress, a Dvele model picked out, or any other make, we can help you understand what your site actually needs before you sign anything.
Signs You Need a Pro Right Now
- You’re planning to sell within two years and the comps in your neighborhood have an extra bedroom. Adding a bedroom before listing in areas like Mansfield or Keller routinely recoups 60 to 75 percent of the cost at sale, and waiting until after listing means losing negotiation leverage.
- Your family has outgrown the current bathroom count. One bath for four or more people makes mornings genuinely harder and often pushes families toward a costly move. A $45,000 bath addition is usually cheaper than buying a bigger house in today’s Fort Worth market.
- Your lot has side or rear yard space that’s doing nothing. Unused yard in Arlington or Hurst is square footage you already own and already pay taxes on. A detached ADU or garage addition converts that dead space into income or storage.
- Code violations from a previous owner are blocking a permit. Fort Worth won’t sign off on new work if existing unpermitted additions are on record. We sort through that with you and bring the existing structure up to code as part of the project.
- You’ve gotten three quotes and none of them are in writing. A contractor who won’t put a price on paper before starting is planning to charge you more later. Our written price is a fixed part of how we work, on every job, no exceptions.
Our Process, Step by Step
- 1
Call and talk to a real person. Call (682) 255-2399 and describe what you’re considering. We’ll ask about your lot size, your home’s age, and what you want the space to do, then set a time to visit. No voicemail trees, no callbacks for a pricing question.
- 2
Site visit with a photo-badged technician. Before we arrive, you get the name and photo of the person coming. At the door, they show a photo ID badge and arrive in a marked uniform. We walk the lot, measure, check access for equipment, and answer your questions on the spot.
- 3
Written price in your hands. Within a few days, you get a written line-item price, not a verbal range. That price covers labor, materials, permits, and the specific scope we discussed. If something changes during the build, we tell you before doing the work, in writing.
- 4
Permits pulled and work scheduled. We pull Fort Worth building permits, schedule inspections, and coordinate any trade work. You know who’s on your property each day because you receive names and photos for every technician before they arrive.
- 5
Walk-through and the 365-Day Done Right Promise. When the work is complete, we walk the space with you and note anything that needs attention. The 365-Day Done Right Promise covers defects in workmanship for one full calendar year from project completion. If something fails, we come back on a free second visit and make it right.
How Much Does Home Addition Contractor Cost in Fort Worth?
A typical bedroom addition in Fort Worth runs $65,000 to $150,000. A bathroom addition lands between $42,000 and $95,000. Sunrooms usually run $55,000 to $120,000, while a full second-story addition starts around $180,000 and can reach $340,000 with finishes. Detached garage additions run $45,000 to $140,000, and a full detached ADU from a brand like Dvele or Boxabl typically lands between $120,000 and $320,000 before site work. These ranges reflect what we’ve quoted across Tarrant County in the last few years.
What moves the price is foundation type, utility tie-in distance, finish level, and whether your existing structure needs reinforcement. A second-floor bath in a 1960s-era frame house in Richland Hills costs more than the same bath over a slab with accessible plumbing. To avoid overpaying, get a written line-item quote and compare it against at least one other written quote. A free estimate from us includes the site visit, measurements, and a written price with no obligation. Call (682) 255-2399 to get yours.
Our Service Area Near Fort Worth
Sutton ADU Fort Worth serves homeowners across Tarrant County, from Arlington and North Richland Hills south through Keller, Benbrook, Mansfield, Hurst, Watauga, White Settlement, Forest Hill, Richland Hills, and Everman. If you’re adding a second story in Arlington or a garage in Mansfield, the same written-price process applies. We schedule site visits within a few days of your call, and our crew comes to you wherever you are in the Fort Worth metro.
Serving Fort Worth, TX - Our Local Coverage Area
We’re based in the Fort Worth area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions About Home Addition Contractor in Fort Worth
A home addition contractor is a builder who adds livable square footage to an existing home, including room additions, second-story builds, garage additions, and ADUs. See our Home Addition Contractor Maintenance Checklist for Fort Worth Homeowners to protect your investment after the build. In Fort Worth, that work requires city permits and inspections, and the contractor handles those as part of the job. Sutton ADU Fort Worth has built additions in Tarrant County since 2006 under the Threshold Verified standard.
A bathroom or bedroom addition typically takes 6 to 10 weeks, while a second-story addition or detached ADU can take 4 to 8 months depending on scope and weather. Fort Worth’s spring rain and summer heat can affect exterior work schedules. Your written quote includes a timeline, and we update you on any changes before they affect your schedule.
Home additions in Fort Worth cost anywhere from $42,000 for a small bath to $340,000 or more for a full second story. The final price depends on foundation type, finishes, and utility tie-in distance. We give you a written line-item price before any work begins, so there’s no guessing. Call (682) 255-2399 for an exact quote on your project.
Yes, we install and finish units from Boxabl, Dvele, Mighty Buildings, Cover, and other prefab ADU brands. We handle site prep, foundation, utility hookups, and interior finishing for these systems. If you already ordered a unit, we can step in at any stage from foundation to final inspection.
We schedule site visits within a few days of your call, and once your written quote is signed, we pull permits and get on the schedule. The actual build start depends on the city’s permit turnaround time and our current project load. Call (682) 255-2399 and we’ll give you an honest timeline for your specific project.
The 365-Day Done Right Promise covers defects in workmanship for one full calendar year from project completion. If something fails due to how we built it, we fix it at no charge, including a free second visit. It’s a written guarantee stamped on your project documents, not a verbal assurance.
Make a list of what you want the space to do, not just what it should look like. Clear access to the areas we’ll be measuring, and have any HOA restrictions or survey documents ready if you have them. You don’t need to clean or stage anything. We’ll handle measurements, photos, and questions during the visit.
Schedule Your Home Addition Contractor Service in Fort Worth Today
Call (682) 255-2399 to schedule your free estimate. You’ll get a written price before any work begins, a name and photo of who’s coming to your door, and the 365-Day Done Right Promise backing the finished job. If you’re adding a bedroom in Benbrook, a second story in Arlington, or an ADU anywhere in Fort Worth, the process starts with one call.
Written by Miles Hartwell, Owner at Sutton ADU Fort Worth, serving Fort Worth since 2006.
