
Cerritos Sunrooms and Patios serves Norwalk, CA homeowners with sunroom construction, patio enclosures, and screen room installation built for the city's dense postwar neighborhoods. We have been working in Norwalk and the surrounding area since 2016, we pull every permit through Los Angeles County ourselves, and we reply within one business day.

Norwalk lots are compact, and the small backyards on most postwar ranch homes leave just enough room for a properly permitted sunroom addition. Our sunroom construction process covers everything from foundation to framing to final inspection, and we design rooms that fit the tight lot conditions common throughout Norwalk without pushing setback limits.
Many Norwalk homes have a concrete slab patio that was poured when the house was built in the 1950s or 1960s and has sat open to the weather ever since. Converting that existing slab into a permitted patio enclosure is typically the most cost-effective way to add enclosed living space to a Norwalk home without expanding the footprint further into the yard.
Norwalk sits far enough inland that warm summer evenings bring insects in from the surrounding basin. A properly installed screen room gives you outdoor air without the bugs, and it costs less than a fully enclosed sunroom - which makes it a popular first step for homeowners who want to start using their backyard more without a large upfront investment.
Norwalk summers regularly reach the mid-90s and the sun is intense from June through September. A four-season room with low-emissivity glass and proper ventilation stays comfortable all year without driving your cooling costs up - which is why fully insulated rooms with quality glazing are the right call for this climate rather than cheaper single-pane enclosures.
If your Norwalk home has an existing patio cover or shade structure that is getting old, converting it into a fully enclosed sunroom is often more practical than repairing it again. We assess the existing structure, remove what cannot be reused, and build a code-compliant enclosed room that is designed to last rather than just patched together.
Norwalk homes are close together, and a sunroom that does not account for neighbor sight lines, narrow side yards, or roofline angles can look out of place and draw complaints. We design each room to fit the specific property and neighborhood, which means the finished addition looks like it belongs rather than like an afterthought bolted onto the back of the house.
Norwalk was built out primarily between 1945 and 1975, and most of its roughly 99,000 residents live in single-story ranch-style homes with stucco exteriors, concrete slab foundations, and small lots. At 60 to 70 years old, those slabs have had decades of expansive clay soil movement working against them - the same swelling and shrinking cycle that affects most of the Los Angeles Basin. A sunroom or patio enclosure built onto a cracked or settled slab will reflect those foundation problems within a few years unless the slab is assessed and addressed first. A contractor who works regularly in Norwalk knows to look for this before pricing a job, not after.
Norwalk is also one of the more densely populated cities in Los Angeles County, with about 10,000 residents per square mile. That density means homes sit close together and lots are small - conditions that affect every phase of a sunroom project, from staging materials to working within setback requirements. The city's hot, dry summers and wet winters create a real range of seasonal conditions, and the Santa Ana winds that push through in fall and winter add structural load considerations to any roofed addition. Sunroom contractors who work primarily in other parts of Los Angeles County and occasionally take a job in Norwalk often underestimate these conditions. A crew that works here regularly does not.
Our crew works throughout Norwalk regularly, and we understand the local conditions that affect sunroom contractor work here. Norwalk is a contract city, so building permits are processed through the Los Angeles County Building and Safety office rather than a city-run department. We pull permits through that county process regularly and know what plan checkers in this region look for when reviewing sunroom and room addition drawings.
Norwalk is a city whose residents navigate by its landmarks - the Los Angeles County Superior Court courthouse on Norwalk Boulevard is one of the most recognizable buildings in the city, and Norwalk Town Square along Firestone Boulevard serves as the civic center for community events and the weekly farmers market. Most of the homes we work on in Norwalk are within a few miles of one of these landmarks - compact ranch houses on modest lots with stucco exteriors, concrete driveways, and backyards that often have a mature tree or two that has been growing since the neighborhood was first developed.
Norwalk shares borders with several cities we serve on a regular basis. Homeowners on the southwestern edge of Norwalk near the 605 freeway are often close to communities we work in throughout La Mirada. Homeowners near the northern city boundary are close to Cerritos, where our business is based and where we do a significant share of our work.
We reply within one business day. The first conversation covers what you want to build, a rough sense of where on the property it would go, and whether any prior work was done on the patio or back wall - details that help us come prepared to the in-home visit.
We visit your property, measure the space, and check the existing slab and connection wall for any issues that would affect cost or scope. This is where we walk you through options and give you a written estimate - there is no charge for the visit and no obligation to proceed.
Once you approve the scope, we prepare drawings and submit the permit application to Los Angeles County Building and Safety. County review typically takes four to six weeks, and we keep you updated throughout so you know where things stand before construction starts.
Most Norwalk sunroom builds take two to four weeks on the ground. We schedule all required county inspections and walk you through the finished room before we consider the job done. Any punch list items are addressed before we leave the site.
We serve homeowners throughout Norwalk and the surrounding area. No pressure, no obligation - just a straight conversation about what you want to build and what it would cost.
(562) 581-8864Norwalk is a city of about 99,000 to 103,000 people in the southeastern part of Los Angeles County, covering roughly 9.6 square miles. It is one of the more densely populated cities in the county, and its housing stock reflects its postwar origins: nearly all of its single-family homes were built between 1945 and 1975 as part of the suburban expansion that spread out from Los Angeles after World War II. The result is a city of compact lots, one-story stucco ranch homes, and neighborhoods where most of the housing looks similar from street to street - but where the condition of that older housing stock varies considerably depending on how individual homeowners have maintained it. About 55 percent of housing units are owner-occupied, and many families have lived in the same house for decades. You can find more about the city at the City of Norwalk official website.
Norwalk sits near the center of southeastern Los Angeles County, bordered by Cerritos to the north, Downey and Santa Fe Springs to the west, La Mirada to the south, and Artesia to the east. Major roads like Norwalk Boulevard, Firestone Boulevard, and Imperial Highway run through the city and serve as the routes most residents use to navigate between neighborhoods. Norwalk Town Square and the Los Angeles County courthouse on Norwalk Boulevard are two of the most recognizable civic landmarks in the city. We work throughout Norwalk and also regularly serve homeowners in nearby Downey and La Mirada.
Keep bugs out and breezes in with a professionally installed screen room.
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Learn MoreOur crew serves all of Norwalk. Call today or submit your estimate request and we will get back to you within one business day.