







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Mesquite, TX
Mesquite sits in a rare position for ADU work: brick ranch homes from the 1960s and 1970s on lots big enough to build on, inside Dallas County but outside Dallas city limits. That means county and city rules overlap, and the right build depends block by block. Fielding ADU Builders handles that patchwork daily, and our Mesquite team prices every project in writing before the first permit is pulled. Call (903) 342-8977 to talk through your lot.
Why Mesquite Homes Are Different

Most Mesquite homes are single-story brick ranches built between 1960 and 1985, on 7,000 to 10,000 square foot lots. The slab foundations and composition shingle roofs are consistent, but what’s underneath is not. Many of the original galvanized water lines are still in the ground in neighborhoods like Casa View Heights and Skyline, and 100-amp electrical panels are common. Almost every ADU or addition here starts with a utility upgrade: a panel swap to 200 amps, a sewer lateral replacement, or both, before a single wall goes up.
The climate adds another layer. Mesquite gets hot, humid summers and hard thunderstorms. HVAC sizing has to account for July heat, not just square footage. Hail-resistant roofing and drainage that moves water away from a slab matter more here than in drier parts of the metro. And the expansive clay soil under Mesquite means foundation movement is a constant concern. We plan for it on every build, from pier depth to how we tie the new slab to the house.
Our Main Mesquite Services
Most Mesquite homeowners call us about one of three things: adding a room, converting a garage, or building a full ADU in the backyard. Each has its own page with local pricing and the specifics of how it works here.
Room Addition Contractor in Mesquite
A room addition on a Mesquite ranch home usually means extending off the back or side, which triggers setback rules and often a variance request. The existing slab and roof tie-in set most of the engineering. We start every addition here with a written price and a permit plan, and we flag any panel or sewer work before it becomes a surprise. Read more on our Room Addition Contractor in Mesquite page.

Garage Conversion Contractor in Mesquite
Mesquite’s separate garages and attached two-car bays make conversions one of the fastest ways to add living space. The real work is in the utilities: running sewer to a detached garage, upsizing the panel, and insulating for Texas summers. We price the conversion with those upgrades included, not as a change order later. See our Garage Conversion Contractor in Mesquite page for the full breakdown.

ADU Builders in Mesquite
Backyard ADUs in Mesquite work best on the larger lots that give you room to build while keeping a yard. The main question is usually build method: prefab, modular, or conventional stick-built. We work with all three and match the method to your lot, budget, and the county’s permitting path. Details and local pricing on our ADU Builders in Mesquite page.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Mesquite
We install and finish ADUs from Boxabl, Plant Prefab, and Tuff Shed, plus conventional builds with James Hardie siding. Parts for these systems are stocked at our Dallas-Fort Worth office, which keeps most Mesquite jobs moving without a supply run. See our brands for the full list.
Pricing for ADU Company in Mesquite, TX
| Service | Typical range in Mesquite |
|---|---|
| Garage conversion (attached) | $45,000 – $75,000 before permit fees |
| Garage conversion (detached) | $60,000 – $95,000 before permit fees |
| ADU, prefab (Boxabl, Plant Prefab) | $120,000 – $180,000 all-in |
| ADU, modular (Tuff Shed-style structure, finished) | $90,000 – $150,000 all-in |
| ADU, conventional stick-built | $180,000 – $300,000 all-in |
| Room addition (standard single room) | $60,000 – $110,000 before permit fees |
| Electrical panel upgrade to 200 amps | $2,500 – $4,500 |
| Sewer lateral replacement | $4,000 – $8,000 |
| HVAC system for new ADU | $6,000 – $12,000 |
In Mesquite, the two biggest price movers are utility upgrades and lot conditions: a 100-amp panel, galvanized sewer lines, or clay soil that needs deeper piers will push the number up before any finish work starts. That’s why we put the full price in writing after a site walk, not a phone estimate. The number you approve is the number on the final invoice.
Neighborhoods We Serve in Mesquite
We run jobs throughout Mesquite, from the older brick streets near the center to the larger lots on the edges. Our crews are in Mesquite weekly, and response for a site walk is usually within a few days.
- Casa View Heights
- Skyline
- Meadow Creek
- Palos Verdes
- Eastridge
Service Area – Cities Near Mesquite
Beyond Mesquite, we cover the surrounding Dallas County communities: Sunnyvale, TX, Seagoville, TX, Irving, TX, and Hutchins, TX. Each city has its own permit office and its own quirks, and we handle them the same way: written price, permitted work, one-year written guarantee.
Serving Mesquite, TX - Our Local Coverage Area
We’re based in the Mesquite area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About ADU Company in Mesquite

Most Mesquite site walks happen within a few days of your call. We schedule around your availability, and the estimate you get is a written line-item price, not a verbal ballpark. Call (903) 342-8977 to set a time.
Yes. Mesquite sits inside Dallas County, and depending on your block you may deal with both city and county review. We pull every permit before work starts and pass every inspection. It’s part of the written price, not an extra line item.
We do. From Casa View Heights to Eastridge and every street between, our crews run Mesquite jobs every week. Scheduling is coordinated from our Dallas-Fort Worth office. Call (903) 342-8977 for a free estimate on your project.
What happens when you call
- 1A real person answersNo phone trees - talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Mesquite Customers Say
"Good addition. Electrical inspection delayed a week, which was the county, but the build is great."
- Eva K."Garage conversion with a new bath and kitchenette. Permit was handled by them. Inspection passed first time."
- Sheila B."Built a detached ADU behind our house. The builder is a veteran and runs the site like a platoon: schedule posted, crew on time, everything labeled. Finished within a few days of the date."
- Ken W.





