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Serving Fremont, CA and surrounding areas. (341) 204-3893
Fremont homeowners trust us to build sunrooms, patio enclosures, and all-season rooms that are permitted, seismically sound, and built to last.
Fremont Sunrooms & Patios is a licensed sunroom contractor based in Fremont, CA, offering 16 services designed to add comfortable, permitted living space to your home. From full four-season additions to patio enclosures and screen rooms, we handle the design, permits, and construction from start to finish. We serve 12 cities across the South Bay and East Bay - so if you are in the area, we come to you.
Want more living space without moving? A sunroom addition gives you a bright, permanent room that connects your home to the outdoors.
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Cold January or hot August - a four-season sunroom stays comfortable year-round with full insulation and climate control.
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Fremont's mild winters mean a three-season room works most of the year at a fraction of the cost of a fully heated addition.
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Wind and bugs cutting your evenings short? A patio enclosure turns your existing outdoor space into a room you actually use.
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Off-the-shelf does not fit your home or your vision. We design and build custom sunrooms sized and styled to match your property.
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From foundation to final inspection, we handle the full construction process so your new room is built right and fully permitted.
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Drafty, faded, or just outdated? We refresh and rebuild existing sunrooms so they look great and work the way they should.
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Keep the breeze, lose the bugs. A screen room gives you open-air living with a comfortable barrier between you and the outdoors.
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Already have a patio? We convert it into a fully enclosed sunroom without starting from scratch on your existing footprint.
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Your deck has the bones - we add walls, windows, and a roof to turn it into a weatherproof room you can use all year.
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An all-season room bridges the gap between sunroom and full addition - usable in any weather, at a price that makes sense.
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Turn a bare patio into a dedicated room with real walls and windows, without the cost of a full home addition.
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A solarium maximizes natural light with a glass roof and walls - perfect for plants, reading, or simply living in sunlight.
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Shade your outdoor space and protect it from rain with a durable patio cover that holds up to Fremont's seasons.
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Start with a plan that works for your home and your life. We guide the design process from the first sketch to the permit drawings.
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Vinyl frames resist fading, rust, and rot - and they look clean for decades with almost no maintenance required.
Learn MoreReach out by phone or through our contact form. We respond within 1 business day. During that first conversation, we ask a few simple questions about what you have in mind - where on your property the room would go, how you plan to use it, and whether you have an HOA. You do not need to have all the answers. Just a general sense of what you are hoping for is enough to get started.
We schedule a free on-site visit at a time that works for you. We measure the space, look at the existing structure and foundation, check setback and zoning requirements, and walk through your options in person. You leave that meeting with a clear picture of what is possible and a detailed written proposal - no vague ballparks, no pressure to sign on the spot.
Once you approve the proposal, we handle the City of Fremont permit application - and HOA paperwork if your neighborhood requires it. Construction begins after permits are approved, and a city inspector signs off at key stages. We hand over a fully finished, code-compliant room and walk you through every detail before we leave.
We carry a current California Contractors State License Board license and full general liability and workers' compensation insurance on every project. You are protected from the first day of work to the last.
We come to your home, measure the space, and give you a detailed written proposal at no cost. No charge for the visit, no pressure to sign. Most estimates are delivered within 3 business days of the site visit.
We have been working on homes in Fremont and the surrounding East Bay for years. We know the local permit process, the HOA landscape, and the seismic requirements that Bay Area projects demand.
Every project goes through the full City of Fremont permit and inspection process. We handle all paperwork on your behalf. Your finished room is legal, documented, and ready for resale.
Ready to get started? Call (341) 204-3893 or send us a message.
"The team pulled our permit, handled the HOA paperwork, and finished the four-season room in right about three weeks of actual construction. We use it every single day now - morning coffee in January, evening dinners in August. Exactly what we were hoping for."
Karen M., Fremont - Four Season Sunrooms
"We had an old patio cover that was rusting and leaking. They came out, showed us the options, and converted it into a proper enclosed patio room. The city inspector came out, signed off, and we were done. Clean work, no surprises on the invoice."
David R., Hayward - Patio-to-Sunroom Conversion
"I was nervous about the permit process in Fremont but they handled every bit of it. The screen room went up fast and looks like it has always been part of the house. Our backyard is actually usable now instead of sitting empty all summer."
Priya S., Union City - Screen Room Installation
Fill out the form and someone from our office will call you to schedule a free on-site estimate. No obligation, no commitment required. We will walk your property, talk through your options, and give you a detailed written proposal before you decide anything.
(341) 204-3893Fremont Sunrooms & Patios is based in Fremont, CA and serves 12 cities across the region - including Newark, Hayward, San Jose, and Milpitas. We offer same-week scheduling for initial estimates and aim to begin permitted projects within your target timeframe. If you are within our service area, we come to you.
A three-season room works in Fremont for most of the year because winters rarely freeze. A four-season room adds full HVAC and insulation for year-round comfort in any weather - and costs significantly more. The right choice depends on your budget and how often you want to use the space in December and January.
California requires earthquake-resistant framing and anchoring for any permanent addition. Near the Hayward Fault, this is not optional. The foundation and the connection between your sunroom and your home must be engineered to move together during ground shaking. Ask any contractor how they handle seismic anchoring - the answer tells you a lot.
An unpermitted sunroom or patio enclosure must be disclosed to buyers in California. It can complicate appraisals, trigger price renegotiations, or require removal before a sale closes. A properly permitted addition, on the other hand, shows up as legal square footage and adds to your home's appraised value.
Summer afternoons in Fremont bring consistent wind off the bay, and inland neighborhoods get warm. Windows with low-emissivity coatings block heat gain while letting in light - keeping the room comfortable without constant air conditioning. Choosing the right glazing upfront prevents the most common complaint: a sunroom that is too hot to use by noon.
Most sunrooms sit on a concrete slab, concrete piers, or a frost-protected shallow foundation. The right choice depends on your soil - and Fremont's clay-heavy soil swells and shrinks with the seasons. A contractor who skips a foundation assessment is cutting a corner that can lead to settling, cracking, and costly repairs within a few years.
Many Fremont neighborhoods - especially in Ardenwood, Warm Springs, and Mission San Jose - require HOA architectural review before any exterior addition. This is completely separate from the city permit, and you need both. HOA approval can take 4 to 8 additional weeks depending on when the board meets. Plan for it from the start.
For more on energy-efficient window options, visit the ENERGY STAR windows and skylights guide from the U.S. Department of Energy.
Fremont Sunrooms & Patios is a licensed and insured sunroom contractor company based in Fremont, California, serving homeowners across the South Bay and East Bay since 2015. We hold a current contractor's license issued by the California Contractors State License Board, and we carry full general liability insurance and workers' compensation on every project.
Since 2015, we have worked on sunroom additions, patio enclosures, four-season rooms, and conversion projects across 16 service types and 12 cities in the region. Every project we complete goes through the full city permit and inspection process, the same standard any reputable home addition contractor should hold themselves to.
Learn more about our team and our work or get in touch to schedule your free estimate.
If you plan to use the space mainly in spring, summer, and fall, a three-season room delivers most of the benefit at a significantly lower cost. In Fremont's mild climate, it often functions 10 or 11 months out of the year without any heating or cooling.
Your contractor submits plans to the City of Fremont, pays the permit fee, and waits for plan check approval - typically 4 to 8 weeks. A city inspector visits during construction to verify the framing and foundation, and again at the end for a final sign-off.
You can verify any contractor's license status and standing directly through the California Contractors State License Board at cslb.ca.gov. Always confirm before signing a contract - a license check takes under two minutes.
The California Contractors State License Board lets you verify any contractor's license status in seconds - always check before you sign. Ready to move forward? Contact us for your free estimate.
Fremont is one of the largest cities in the San Francisco Bay Area, with roughly 230,000 residents and a homeownership rate near 60 percent. Census data consistently shows Fremont homeowners invest heavily in their properties - and with median home values well above $1 million, that investment matters. Fremont was formed in 1956 by merging five distinct communities, and each neighborhood still carries its own character and its own housing stock.
From the craftsman bungalows in the historic Niles district to the newer two-story homes near Warm Springs BART, we have worked on homes across every corner of the city. Families near Lake Elizabeth and Central Park often have rear yards with good southern exposure - ideal for a sunroom that captures Fremont's 260-plus sunny days without the midday heat. Neighborhoods in Mission San Jose and Ardenwood tend to have active HOAs, and we are familiar with the design review process in those communities.
Fremont also sits directly along the Hayward Fault, one of the most active earthquake faults in California. Every sunroom and patio enclosure we build meets California's earthquake-resistant construction standards - because for Fremont homeowners, that is not optional. Whether your home is a mid-century ranch in Irvington or a newer build in Warm Springs, we understand what your property needs and how to build an addition that holds up.
By appointment only, no walk-ins.
Fremont Sunrooms & Patios
38634 Drexel Ct
Fremont, CA 94536
(341) 204-3893team@fremontsunroomcontractor.comFremont Sunrooms & Patios builds permitted sunrooms and patio enclosures in Fremont and across the South Bay. Call us or request a free estimate online and we will respond within 1 business day.