Serving Cerritos, CA and surrounding areas. (562) 581-8864
Your patio sits empty for months because of heat, wind, or morning chill. An all season room gives your family a comfortable, climate-controlled space you can actually use every single day.
All season rooms in Cerritos are fully enclosed additions with insulated walls, energy-efficient windows, and a heating and cooling system so the space stays comfortable no matter the weather outside. Unlike a basic screened porch or a simple patio cover, this is a permanent room tied into your home structure, most projects run four to twelve weeks of construction after permits are approved.
Many Cerritos homeowners reach this point after years of watching their patio sit unused through summer afternoons and chilly winter mornings. If your goal is comfortable year-round living space, an all season room is the most complete solution available. For homeowners comparing options at the four-season end of the spectrum, our enclosed patio rooms service covers similar fully enclosed builds with a focus on converting existing patio slabs.
The difference between a well-built all season room and an older basic enclosure comes down to three things: insulation quality, window performance, and whether the room has its own climate control. A room that checks all three stays comfortable in Cerritos summers, when afternoon temperatures can climb into the low 90s, and in the cooler months when morning marine layer keeps the air damp and cool.
If your backyard patio sits unused because summer afternoons are too hot or winter mornings too chilly, that is the clearest signal an all season room would change how you live in your home. In Cerritos, where neighborhoods facing inland can see temperatures in the low 90s, an uncovered or lightly covered patio is comfortable for only a few months a year. Climate control changes that completely.
Condensation between glass panes, drafts around window frames, or water stains on the floor after rain are signs your current enclosure is either aging past its useful life or was never built to a high standard. Older patio enclosures common in 1980s and 1990s Cerritos homes often used single-pane glass and minimal insulation that cannot meet modern comfort expectations. Waiting extends the damage.
If your family has outgrown your home but you want to stay in your Cerritos neighborhood - and the schools served by ABC Unified are a reason many families stay put - an all season room is one of the most cost-effective ways to add a functional room. Many homeowners use the space as a home office, a playroom, or a dining area that opens to the backyard.
If you are running portable heaters or fans to make a poorly sealed patio space comfortable, you are paying to condition air that escapes straight out. A properly built all season room with insulation and a dedicated climate system costs less to keep comfortable month to month than a leaky enclosure where every dollar of conditioned air walks right out the door.
Every all season room project starts with a site visit where we look at your existing patio, yard, or covered area and talk through how you want to use the new room. From there we handle design, permitting through the City of Cerritos Building and Safety Division, HOA submission if your neighborhood requires it, and full construction from foundation work through interior finishing. For homeowners who want the most complete four-season experience, we also offer four season sunrooms, which feature the same level of climate-control performance with a sunroom aesthetic and additional glazing options.
We work with homeowners at every stage of decision-making. Some know exactly what they want; others are still deciding between a full all season room and a more affordable option. If you need a space that works most of the year without the full cost of year-round climate control, we can discuss options at both ends of that range. For fully enclosed patio spaces with a focus on existing concrete slabs, our enclosed patio rooms service covers the same footprint with a slightly different design and construction approach. Every build we deliver is permitted, inspected, and built to California seismic and energy standards.
Best for homeowners who want a permanent, fully insulated room with dedicated heating and cooling they can use every day of the year.
Suited for homeowners who have an older patio enclosure that leaks, drafts, or lacks climate control and want to bring it up to a true all season standard.
For homeowners who want the new room tied into their existing HVAC system and roofline so it looks and functions like an original part of the house.
Ideal for properties where connecting to the existing HVAC is not practical - a mini-split system handles heating and cooling independently with no ductwork required.
Cerritos sits in the southeast Los Angeles County basin where summer temperatures in the inland-facing neighborhoods regularly reach the low 90s, and the marine layer off the coast can make mornings cool and damp even in July. That variability is why a well-built all season room matters more here than in cities with steadier weather - you genuinely need insulation and climate control to get year-round use out of the space. The city was developed rapidly in the 1960s and 1970s, and most homes are single-story ranch-style houses on concrete slab foundations. That is actually good news for all season room projects - slab foundations are straightforward to tie into, and single-story rooflines are easier to extend cleanly than two-story homes.
Homeowners in Bellflower and Compton face similar conditions and housing stock, and the all season room projects we complete in those communities follow the same construction approach we use throughout Cerritos. One local factor worth knowing upfront: homes from the 1960s and 1970s often have electrical panels that do not have enough capacity to support a new climate-controlled room. A good contractor will check this during the site visit and tell you about any upgrade cost before you sign anything. The California Contractors State License Board makes it easy to verify any contractor you are considering before work begins.
Call or fill out the contact form and we will follow up within one business day to schedule a free in-home visit. The first call is just a brief conversation about what you have in mind and your rough budget range - no commitment required.
We visit your home, measure the space, check your existing slab and roofline, and note any HOA or zoning considerations. We then put together a written proposal covering the full scope, materials, timeline, and cost - so you can compare us fairly against any other bids.
Once you sign the contract, we submit your permit application to the City of Cerritos and handle any HOA architectural review materials if your neighborhood requires them. Cerritos permit review typically takes two to six weeks - this is built into the timeline and is a normal part of doing the project correctly.
With permits in hand, construction runs four to twelve weeks depending on project size. The city inspector visits at key stages. When everything passes final inspection, we walk through the finished room with you and make sure every detail is right before we consider the job complete.
Free in-home estimate. Written proposal with full scope and cost. No pressure.
(562) 581-8864We pull permits through the City of Cerritos Building and Safety Division on every job - no exceptions. That means your addition is inspected at multiple stages, documented for your records, and disclosed correctly when you sell. Unpermitted additions are one of the most common complications in local home sales, and we make sure you never face that problem.
Cerritos sits in a seismically active part of Los Angeles County - the 1987 Whittier Narrows earthquake caused real damage to homes in this area. Every all season room we build is anchored and braced to meet California seismic requirements, so the room moves with your home the way it is supposed to, not away from it. We treat this as a baseline requirement, not an upgrade.
A significant share of Cerritos neighborhoods fall under HOA oversight with architectural review requirements. We prepare and submit your HOA package before construction begins, so your design is approved in writing before any work starts. This protects you from the painful situation of completing an addition and then receiving a letter demanding changes.
We specify glazing that meets California Title 24 energy standards and is chosen specifically for Cerritos conditions - blocking heat from intense afternoon sun while keeping the room bright. The California Energy Commission Title 24 standards set the minimum - we use them as a starting point and choose options that actually perform well in this climate zone.
These are not promises - they are the way we operate on every project. When your all season room is finished, it will be permitted, seismically sound, and comfortable to use through every month of the Cerritos year.
Transform your existing Cerritos patio slab into a fully enclosed, weathertight room with walls, windows, and a solid roof.
Learn MoreA premium year-round sunroom with expanded glazing options and full climate-control integration for maximum comfort in every season.
Learn MorePermit slots in Los Angeles County fill up - the sooner we submit your application, the sooner your new room is ready to use.
