







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Leon Valley
Hiring a General Contractor in Leon Valley means sorting through a lot of questions before you ever sign anything. Does your property sit in city limits or unincorporated Bexar County? Will the clay soil near Huebner Creek force deeper piers? What does the county require for drainage on an acreage lot? We answer those questions before we quote, because getting them wrong costs you money and delays the job by weeks. Call (254) 269-5071 and you’ll talk to a person who knows Leon Valley building conditions, not a call center.
Mason Remodeling has worked on ranch homes off Bandera Road, acreage properties along Evers Road, and infill lots throughout the 78238 and 78240 corridors. We know what the Edwards Plateau recharge zone means for your foundation design, and we scope every project with that reality in mind. If you’re planning a detached shop, an ADU, a room addition, or a whole-home remodel in Leon Valley, a written price comes before any work starts. Every time.
Why Mason Remodeling Co San Antonio Is Leon Valley’s Preferred General Contractor Company

Leon Valley homeowners keep calling us back because we treat acreage construction differently than tract-home remodeling. A lot off Huebner Creek with high clay content needs different engineering than a 1960s ranch on a standard city lot. We walk the property, check the soil, review county drainage requirements, and scope the job to match what the land actually demands. That’s not extra effort. It’s the only way to deliver a fixed price that holds.
Every crew member who comes to your Leon Valley property has been background-checked and identity-verified through The Threshold Standard. You get each technician’s name and photo before they arrive, and they show a photo ID badge at the door. That matters when you’re home alone with kids, or when an older parent is letting workers onto a two-acre property with no neighbors in sight. Isaac Pruett leads our team, and he holds every Leon Valley project to the same standard: written price first, written guarantee on completion.
Our 365-Day Done Right Promise applies to every general contracting job we complete in Leon Valley. If something isn’t right within a year of completion, we return and make it right at no charge. No dispute process, no conditions, no chasing us down. Just a phone call to (254) 269-5071 and we schedule the return visit.
Styles & brands we work with







General Contractor Services in Leon Valley
Our Leon Valley Home Remodeling and general contracting services cover the full scope of residential construction, from detached structures on open acreage to major additions on established lots. We handle county permitting, septic and well setbacks, grading plans, and all trade coordination so you don’t have to manage five different phone numbers. A typical home addition in Leon Valley runs $45,000 to $130,000 depending on square footage, foundation complexity, and whether the county requires engineered drainage. Garage conversions start around $30,000 and go to $80,000.
Detached Shops and Outbuildings
Leon Valley’s acreage properties, especially those west of Bandera Road, lend themselves to detached shops, workshops, and equipment storage. These projects trigger county setback reviews and often require piered foundations when soil tests show expansive clay. We scope these before quoting so the price you see is the price you pay.

Septic and Well Coordination
Building on unincorporated land means septic system placement and well setbacks directly affect where your structure can go. We bring in the soil evaluator, map the setbacks, and confirm the county will sign off before we pour a single footer. That prevents the expensive mistake of siting a shop too close to a drain field.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Construction Company in Leon Valley

As a Construction Company working across Leon Valley, we function as the single point of accountability for your entire build. We pull permits, schedule inspections, coordinate subs, order materials, and manage the draw schedule. Homeowners on west-side acreage face long material hauls and tight access roads, which means delivery timing has to be planned, not hoped for. A concrete driveway installation in Leon Valley runs $4,500 to $12,000, and a paver patio runs $3,500 to $11,000. Those prices include site prep and grading because the flash-flood conditions here don’t forgive shortcuts.
Foundation and Drainage Engineering
Because Leon Valley sits on the Edwards Plateau recharge zone and drains toward Huebner Creek, new detached structures often need deeper piers and enhanced waterproofing. We pull soil tests, design the pier depth to match the clay content, and spec a drainage plan that sends sheet flow away from the slab. This is the difference between a structure that settles evenly and one that cracks within three years.
Grading, Swales, and Retention
Flash flood alley isn’t a slogan. Leon Valley gets intense, short-duration rainfall that can undercut a new outbuilding in a single storm. We build gravity-fed swales and retention features into the original quote, not as a change order after the first rain. That’s a written allowance on every acreage project we scope.
Building on Acreage: What Changes the Price in Leon Valley
Building on open acreage around Leon Valley is not the same as remodeling a house inside Loop 410. County permitting replaces city permitting. Septic and well setbacks dictate where the structure can sit. Long material hauls on narrow county roads add delivery fees and timing constraints. And the clay-heavy soils near Huebner Creek often force deeper piers than a soil map would suggest. We scope all of this before we quote, so the written price accounts for what the land actually requires.
On a two-acre lot off Evers Road, our crew scoped a 900-square-foot detached shop with full bath and kitchenette. Before quoting, we walked the county setback lines, had a soil test showing high clay content near Huebner Creek, and adjusted the scope of work to include a 24-inch piered foundation, a gravity-fed swale, and a pump-assisted septic connection. All of it went into the allowances so the draw schedule stayed clean. No surprises mid-project. No change-order pileup at the end.
This is the information most general contractor quotes skip. They price the square footage without checking whether the property is in Leon Valley city limits or unincorporated Bexar County. Then the permits look different, the septic setback forces a redesign, and the homeowner eats the cost. We don’t work that way. The price we hand you is the price we build to.
Common General Contractor Problems We See in Leon Valley Homes
- Clay soil movement on slab-on-grade foundations. Leon Valley’s 1950s-1970s ranch homes sit on expansive clay that shrinks in drought and swells after rain. Over time, this shifts slabs and cracks interior walls. A remodel that doesn’t address the foundation first is money wasted.
- Flash-flood drainage failures on open lots. Western Leon Valley acreage drains toward Huebner Creek, and a bad grading plan sends sheet flow straight into the slab or under a new outbuilding. We build swales and retention into the first quote.
- Permit jurisdiction confusion. The property line between Leon Valley city limits and unincorporated Bexar County changes the permitting authority, septic rules, and inspection process. Quoting without checking this is the single most expensive mistake we see.
- Material delivery damage on long hauls. Tight access roads and long runs from supply yards mean standard cabinetry and countertop orders arrive damaged or late. We spec materials from partners like Atlas and Tamko with delivery timing built into the schedule, not treated as an afterthought.
See the difference
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AfterTrusted Brands We Service in Leon Valley
Leon Valley acreage projects need materials that hold up to clay soils, flash floods, and Texas sun. We work with specification-grade product lines including Atlas for exterior cladding, Tamko for roofing, and Boral for trim and siding. Because we order these brands regularly for Leon Valley jobs, we can schedule delivery around your project’s access constraints and avoid the long waits that plague open-lot construction. When you call (254) 269-5071, we’ll tell you which brands are currently shipping fastest and what fits your structure without overspending.
Pricing for General Contractor in Leon Valley, TX

Every Leon Valley quote we write includes the site-specific costs most contractors bury in change orders. Here’s what you’re looking at:
| Project Type | Leon Valley Price Range |
|---|---|
| Detached ADU Construction | $90,000 – $220,000 |
| Home Addition | $45,000 – $130,000 |
| Concrete Driveway Installation | $4,500 – $12,000 |
| Paver Patio Installation | $3,500 – $11,000 |
What moves the number on a Leon Valley job? County versus city permitting, soil test results near Huebner Creek, septic and well setback distances, and the length of the material haul to your property. We give you a written line-item price before any work begins. You’ll see the allowances for piers, drainage, and site prep spelled out, so there’s no mystery line at the end. Call (254) 269-5071 to schedule a free estimate.
We Also Serve Cities Near Leon Valley
Our General Contractor in Leon Valley work extends to homeowners in nearby San Antonio, Boerne, Selma, and Terrell Hills. If you’re on the edge of Leon Valley or managing a property that straddles city and county lines, call (254) 269-5071 and we’ll tell you which jurisdiction applies to your address.
Serving Leon Valley, TX - Our Local Coverage Area
We’re based in the Leon Valley 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 General Contractor in Leon Valley
It depends entirely on whether your property falls inside Leon Valley city limits or unincorporated Bexar County. Inside city limits, Leon Valley issues the permits and performs inspections. Outside the city, Bexar County handles permitting, and septic setbacks and well distances fall under county health and environmental rules. We verify your jurisdiction before quoting, because the process and cost are materially different. Call (254) 269-5071 with your address and we’ll tell you which one applies.
The recharge zone sits beneath Leon Valley and means stormwater has to be managed more carefully than on typical Bexar County lots. Homes on the western edge near Huebner Creek often have higher clay content in the soil, which expands and contracts more aggressively. That means deeper foundation piers, usually 24 inches or more, and a drainage plan designed to keep water from saturating the slab perimeter. We pull soil tests before quoting so the foundation spec matches your specific lot, not a generic Leon Valley assumption.
Scoping a detached ADU on acreage takes two to three weeks when we’re doing it properly. That includes the county or city jurisdiction check, soil test, septic and well setback mapping, drainage design, and a written quote with all allowances itemized. Contractors who quote in 48 hours are skipping at least three of those steps and you’ll pay for that later in change orders. Call (254) 269-5071 to start the scoping process on your Leon Valley property.
Leon Valley quotes vary because the land under the house varies far more than the house itself. Two kitchens with identical cabinets can carry wildly different prices if one property sits on high-clay soil near Huebner Creek and needs foundation work, while the other is on stable infill inside the city. County permits add cost versus city permits. Long material hauls to western acreage add delivery charges. A competent quote breaks these out as line items. A vague quote hides them. We hand you the line-item version every time.
We write the scope so thoroughly that genuine change orders are rare. But when one comes up, like the county requiring a different septic connection than the soil evaluator first indicated, we present the change in writing with the exact delta, the reason, and the revised timeline before we proceed. No work happens on a change order until you sign it. The draw schedule adjusts accordingly, and you always know exactly where the budget stands. Call (254) 269-5071 for a free estimate, and we’ll walk you through how our fixed pricing works on Leon Valley acreage.
Written by Isaac Pruett, Owner at Mason Remodeling Co San Antonio, serving Leon Valley since 2004.










