
Patio Enclosures & Sunrooms in Allen, TX
Complete backyards for Allen homeowners in Collin County. Pool, kitchen, shade, stone and light, designed together and built by one family-owned team.
- 40+Years in Business
- 15,000+Projects Completed
- 1984Family-Owned Since
- 90DFW Cities Served

What should Allen homeowners know before building a backyard?
Allen yards are typically newer suburban lots where the builder already set the drainage fall. New hardscape has to work with that fall rather than against it, or you move water toward the house.
That ground decides how a slab, a pool shell or a footing has to be built here. Here is what it does to a patio.
We file the permit with the City of Allen and follow it through review, so the schedule doesn’t stall on paperwork. Allen’s water comes from the North Texas Municipal Water District.
Longhorn has built across Collin County and the wider Metroplex since 1984, and every project starts with a free design visit and a firm price.
What we build in Allen, TX
Also in Allen: pergolas, plus windows, siding, doors and attic insulation.
How a Backyard Project Runs in Allen
- 1
A free design visit in Allen
A designer comes out to the house, measures the space a backyard project has to fit, walks the access a crew would need, and talks through what you want it to do. You leave with a firm price. On Blackland Prairie ground, that is also when the grading, drainage and movement details get decided rather than improvised on site.
- 2
Drawings, permit and HOA
We file the permit with the City of Allen and follow it through review, so the schedule does not stall on paperwork. Where an HOA wants a submittal, we prepare the drawings it asks for.
- 3
One crew, one schedule
The same team builds the whole backyard project in order, so the slab, the structure, the electrical and the finish work are not three different companies working around each other.
- 4
Walkthrough and warranty
We walk the finished backyard project with you, settle the punch list and leave one warranty on the work, and we are still Collin County-local if you need us later.
Homes and Yards in Allen
Allen’s rapid growth began in the late 1960s, driven by Dallas, neighboring Plano and the new DFW Airport.
Most Allen yards sit in subdivisions where the builder set the grade and poured a small patio slab, and many come with an HOA review, so it pays to plan the whole backyard together and take one set of drawings to the HOA.
Allen lies in the Rowlett Creek watershed, with gently rolling terrain of blackland clay over Austin Chalk limestone. Where the ground slopes or rock sits close to the surface, retaining walls or rock excavation get priced at the design visit rather than discovered during the dig.
- County
- Collin County
- Ground
- Blackland Prairie
- Water
- North Texas MWD
Allen backyard questions
Almost always, for pools and for anything attached to the house, including patio covers, sunrooms and enclosures. Longhorn files the permit with the City of Allen and handles the inspections, so the schedule does not stall on paperwork.
Allen sits on Blackland Prairie ground in Collin County. The ground decides how a slab, a pool shell or a footing has to be built, so we plan the drainage and the footings for it at the first visit rather than after something moves.
Allen’s water comes from the North Texas Municipal Water District. Watering schedules can tighten in a drought, so we plan the planting and irrigation around the current rules and choose heat-tolerant plants that can establish on them.
Other cities we build in near Allen
Free design visits in Allen
Tell us what you have in mind and we’ll come measure, talk options and give you a straight number. No obligation, no pressure.
Call (214) 251-4928Get Your Free Quote
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