
Superior Stanton Sunrooms & Patios is Westminster's trusted sunroom contractor, building enclosed patio rooms, sunroom additions, and four season sunrooms for homeowners across the city. We have served the Orange County area since 2018 and respond to new inquiries within one business day.

Westminster's postwar ranch homes often have concrete patios that sit underused because summer heat and year-round coastal moisture make them uncomfortable. We build enclosed patio rooms that turn those existing slabs into insulated, weatherproof rooms you can use every day of the year without air conditioning fighting the marine layer.
Westminster's modest lot sizes mean adding a formal room addition to the front of the house is rarely practical. A sunroom addition built off the back of a single-story ranch gives you 150 to 300 square feet of usable living space without touching your front setback or disturbing the street-facing elevation.
Westminster's October through March rainy season can make an uninsulated patio room cold and damp. A four season sunroom with a dedicated mini-split unit handles those wet weeks comfortably and keeps the room usable as a home office or family room all year long.
Many Westminster homeowners have covered patios that were built in the 1970s or 1980s as simple alumawood structures. Enclosing those covers with insulated glass or polycarbonate panels upgrades an aging shade structure into a usable room without requiring a full foundation pour.
Westminster's proximity to the coast means warm evenings are genuinely pleasant from April through November. A screened room lets you enjoy that outdoor air while keeping mosquitoes and the Santa Ana wind-blown debris out, extending the usable hours of your backyard on most nights.
Westminster's summer UV levels are intense enough to fade outdoor furniture and make uncovered patios unusable by midday. A solid patio cover - alumawood or stucco-matched to the house - cuts direct sun without fully enclosing the space, which suits homeowners who want shade but prefer open air circulation.
Westminster was incorporated in 1957 and built out rapidly through the 1960s and early 1970s. The bulk of the city's housing stock is now 60 to 70 years old - original slab foundations, stucco exteriors, and low-slope rooflines that were designed for open-air living rather than enclosed additions. When you add a sunroom or enclosed patio room to a home this age, you are connecting a new structure to walls and footings that may never have been intended to carry the load. A contractor who works in Westminster regularly understands how those older attachment points behave and what reinforcement they need before any framing begins.
Westminster's location about five miles from the Pacific Ocean adds another layer of consideration. The marine layer brings persistent coastal moisture that accelerates corrosion on metal frames and works into any gap in glazing seals over time. Clay soils throughout Orange County expand when wet and shrink when dry, putting stress on new slabs and footings with every rainy season. Combine that with the intense UV exposure during summer and the occasional Santa Ana wind event, and it is clear that materials and methods that work fine in an inland suburb need to be chosen with more care here.
Our crew works throughout Westminster regularly, and we understand the local conditions that affect sunroom contractor work here. Westminster's single-story ranch homes are the most common job type we encounter - low-pitched rooflines, attached garages, stucco exteriors, and concrete slab foundations are what we see on most streets throughout the city. We know how to attach a new sunroom cleanly to a stucco wall without creating a water entry point at the joint, and we are familiar with how the soil near the city's older drainage channels behaves after wet winters.
Westminster's neighborhoods stretch from the streets near Bolsa Avenue and Little Saigon on the north side to the quieter residential blocks near Westminster Mall on the south side. We serve all of it. Whether your home sits on a busy street near Bolsa or on a side street near the Garden Grove border, the work is the same: a clean, permitted addition that blends with your existing exterior and lasts.
We also serve neighboring cities directly south and east. Homeowners in Fountain Valley and Garden Grove call us for the same reason Westminster homeowners do: we know how the housing stock in this part of Orange County was built and what it takes to add to it properly.
Contact us by phone or through the estimate form on this page. We respond to every Westminster inquiry within one business day and can usually schedule an on-site visit within the same week.
We visit your Westminster home to measure the space, review the existing foundation and exterior wall conditions, and discuss design options. This visit is free and typically takes 30 to 45 minutes. You get a written scope and price before committing to anything.
We prepare and submit all permit documents to the Westminster Community Development Department on your behalf. Permit review typically takes two to four weeks. We schedule your construction start date once approval is confirmed so you know exactly when the crew arrives.
Most Westminster enclosed patio room and sunroom projects complete construction in two to four weeks. At completion, we walk through the finished room with you, confirm all inspections have passed, and leave you with copies of the approved permit and final inspection sign-off.
We serve Westminster homeowners throughout the city - from the streets near Little Saigon to the neighborhoods along the Fountain Valley border. No pressure, no obligation - just a free on-site estimate and a clear written price.
(657) 385-0221Westminster is a city of about 91,000 people in northwestern Orange County, incorporated in 1957 and built out primarily between 1955 and 1975. The city covers roughly 10 square miles and is fully developed - there is no undeveloped land left, and virtually every parcel has been improved. The residential core is made up of single-story ranch homes on modest lots, mostly in the 5,000 to 7,500 square foot range. Westminster is perhaps best known nationally for Little Saigon, the stretch of Bolsa Avenue that is home to the largest Vietnamese-American community in the United States. The community brings a dense mix of residential and commercial uses to the northern part of the city, while the southern neighborhoods near Westminster Mall and Sid Goldstein Freedom Park are quieter and more exclusively residential.
Westminster sits at the border of several active cities. It shares boundaries with Garden Grove to the north and east, Huntington Beach and Seal Beach to the south, and Fountain Valley to the east. The city is about five miles from the Pacific Ocean, which gives it a moderately coastal climate - mild and pleasant most of the year, with the marine layer rolling through most spring and summer mornings. Homeowners in Westminster who want a better outdoor-to-indoor connection often find that their existing concrete patios and covered rear entries are the right foundation for a project. Homeowners in nearby Huntington Beach and Stanton face similar housing stock and similar climate conditions.
Expand your home with a beautiful, professionally built sunroom addition.
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Learn MoreWe are taking new projects in Westminster now. Call or submit the estimate form and we will be in touch within one business day.