Loma Linda Sunrooms & PatiosLoma Linda Sunrooms & Patios

Four season sunrooms in Loma Linda CA - a room that's comfortable in July and January

Your patio is too hot in summer and too cold in winter to use. We build an insulated, heated and cooled room you use all year.

Four-season sunroom with exposed wood ceiling beams, brick walls, large windows, wicker seating and potted plants.

What is a four season sunroom, and is it right for your house?

A four season sunroom is a fully enclosed room with all-weather windows and its own heating and cooling, so in Loma Linda you can use it through August afternoons and winter evenings like any other room in the house. Three season rooms and enclosed porches generally aren't heated or cooled and use uninsulated windows or screens, and that's the real line between the two.

Most people who call us have a covered patio, a slab or a deck out back that's too hot to sit on by mid-afternoon and too chilly once the sun drops. The price moves with the size of the room, whether the slab or deck needs a new foundation or more support under it, the windows you pick and how the heating and cooling is set up, while the schedule mostly turns on the city's plan review and inspections. If you're starting from an open slab, our patio-to-sunroom conversion page covers that side of the job, and your written estimate gives you the figure for your own house.

How we build a four season sunroom

A four season room has to feel like part of the house, so we plan the windows and the insulation in the walls, floor and roof while it's still on paper, because they go in far easier during the build and adding them later usually costs you more. The other early choice is how the room meets the house. It can keep your existing back door and windows and run on its own heating and cooling, closed off from the rest of the house, or it can be built essentially like a regular room addition that opens straight in. If you'll be in it every day, I usually point you toward building it like an addition, since a room you walk through all day shouldn't feel like stepping outside. From there our crew sets the footings or foundation, frames the walls and roof, ties the roof into your house, sets the windows, insulates, finishes the inside and cleans up.

If heat and air aren't on your list, a three season sunroom costs less and still keeps out wind and bugs for most of the year. If you mainly want walls and glass or screens around the covered patio you already have, patio enclosures are the simpler job.

Building a four season sunroom in Loma Linda

Every four season room here goes through the city before we build. Loma Linda's Building and Safety Division reviews the plans for all proposed construction, additions included, before it issues a building permit, and a heated and cooled room on your house is an addition. We put together the plans and paperwork, file them with the city's building office and meet the inspector at each inspection, so you're not the one chasing the permit.

Most houses we work on here are single-story with a covered patio out back, and the afternoon sun hits those patios hard all summer. That's why I look at which way the room faces before we pick windows, and why we tie the new roof into your house instead of leaning on the old patio cover. We see the same houses and the same afternoon heat on jobs in Redlands and Yucaipa.

How a four season room gets built

  1. Call and pick a time

    Call (909) 515-5048 or send the form, and we set a time that works for you. I'm the one who comes out.

  2. Measure and write the estimate

    I measure, check the slab or deck and ask what you want the room for, then you get a clear recommendation and a written estimate. That estimate is your actual number, so you're not guessing from ranges online.

  3. Build in order for inspections

    Once the city issues the permit, our crew builds in order so each stage is ready when the inspector comes. Loma Linda inspects on weekdays during a set midday window and same-day slots aren't always open, so we book ahead and plan the work around them.

  4. Walk the finished room together

    When the room is done, I walk through it with you before we call it finished. Your satisfaction, guaranteed.

A furnished sunroom has large white-framed windows, striped chairs, a glass table and views of a landscaped garden.

Get a written estimate for your four season room

Expect a reply within one business day. The estimate is free, done at your property, and there's no pressure and no obligation. Once you send the form, we set a time for me to come out, measure and look at your slab or deck.

Call (909) 515-5048

Questions before you book a four season sunroom

What does a four season sunroom cost near Loma Linda?

A sunroom in the San Bernardino area usually costs about $16,000 to $115,000 per project. Larger rooms that need a foundation and have heating and air conditioning sit toward the top of that range, and a four season room always has the heating and cooling, so plan on it landing higher than a basic enclosure. Your written estimate gives the figure for your house.

What does Loma Linda inspect on a sunroom addition?

The city does field inspections on all additions and structural alterations, checking them against structural, fire, health and safety requirements. A four season room counts as an addition, so expect inspections at stages through the build rather than one at the end.

How do I know if my deck can hold a four season sunroom?

Most decks need more beams, posts or footings before they can carry a sunroom, because the walls, windows and roof add weight and loads the deck wasn't built for. A local structural engineer can say whether your deck is suitable, so that check comes early in the plan, before the room is designed around it.

How do I find my fire hazard zone in Loma Linda?

Ask the Office of the City Clerk for the city's fire hazard zone map, which is on file there and available on request. Loma Linda rates zones as Moderate, High or Very High under the state's updated maps, and related building standards and fire safety requirements apply in those zones. If your parcel falls in more than one zone, the city applies the highest one to the whole parcel.

Does a contractor in California have to tell me who the subcontractors are?

Yes, if you ask, a home improvement contractor in California has to disclose any subcontractors on your job. They also have to give each one's name, contact information, license number and classification, and the prime contractor stays responsible for the project.

Can I turn my covered patio into a four season sunroom in Loma Linda?

Often you can, as long as the slab can carry walls, windows and an insulated roof, or can get footings that will. A patio slab was usually poured for furniture, not walls, so I check it on the first visit, and a new foundation is one of the things that pushes the price toward the top of that range.

Why Loma Linda homeowners call Loma Linda Sunrooms & Patios for four season rooms

  • I come to every job myself

    I look at every job in person, and our own crew does the building. If your deck or slab can't hold the room you want, you'll hear it from me on that first visit, along with what will work.

  • Building again since 2021

    I built patio covers and sunrooms when I was younger, then came back to the trade and started this business in 2021, five years ago now. I came back to build, not to do it halfway, so we'd rather get your room right the first time than fix it later.

  • Plans built to the city's checklist

    Loma Linda lists a Room Addition checklist among its application documents, and we put your plan set together with it in hand. That way the city's review starts with what it asks for.

  • Licensed and insured for your build

    We're fully licensed and insured. A four season room ties into your roof and walls, so it matters who's carrying the coverage while it's built.

On a four season room, the support underneath and the insulation all around decide how it lives for years, so that's where the first visit starts. Call (909) 515-5048 or reach us through the contact page to set it up.

  • Three season sunrooms

    A good fit if you want a bright, closed-in room for spring through fall and don't need to heat or cool it.

  • Patio enclosures

    Closes in the covered patio you already have, so you get shade and shelter without building a full room.

Book a visit for your four season room

Have a few photos of your patio or deck, a rough room size and how you'd like it heated and cooled ready when you call (909) 515-5048 or use the form, and we'll get further on the first visit in Loma Linda.

A screened pool enclosure with a dark metal frame shelters a swimming pool beside a canal and palm trees.
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