Home Addition Contractor in Phoenix
Radiant Construction is a licensed, bonded, and insured home addition contractor in Phoenix, for families who love where they live and need more house. Second story additions, large room additions, and primary suites, engineered and permitted the right way.
Get a Free EstimateMost families who call about an addition are not looking to move. They like the neighborhood, the school, the neighbors, the tree in the backyard. They just ran out of room. An addition done well solves that without giving any of it up. An addition done poorly is a leaky, sagging reminder of who you hired. Radiant Construction builds additions across the Phoenix metro with stamped engineering, real permits, and one accountable contractor from the first drawing to the final walk.
Second story additions in Phoenix
When the lot is full and the family is still growing, the only way to go is up. A second story addition is the most demanding thing you can do to an existing house, and it is exactly the kind of work our KB-1 Dual general building license is meant for. Before anyone talks about bedrooms, an engineer evaluates whether your foundation, framing and soil can carry a second floor. Many Valley homes can. Some need reinforcement first, and some are better served by a partial second story over the strongest part of the house. We tell you which one you have before you spend money on full plans.
From there the project is roof, framing, stairs, and tying every system in the house together so the new floor works like it was always there: electrical, plumbing, HVAC sized for the added load, and a roofline that looks like it belongs on the street. We plan the sequence around your family, because the roof comes off in stages and there will be loud weeks. You will know when they are coming.
Room additions and primary suites
When the lot has room, building out is usually simpler and less disruptive than building up. The additions we take on are the substantial ones: a primary suite with a full bath and closet, a great room that opens the back of the house, a multi-generational wing with its own entrance, or a large kitchen expansion that moves exterior walls. If the plan involves removing a load bearing wall to connect the old house to the new space, that is part of the same job, engineered and permitted together.
Who this is for
- You are staying put and want more house, not a different one, and you want the addition to look and feel like part of the original home.
- Your project is structural: a second story, a suite with plumbing, a wall coming out, a roofline changing. You want a contractor licensed for the whole scope, not a handyman with a big truck.
- You want to know what is happening every week, what it costs, and what decision is coming next, without having to chase anyone for it.
How an addition gets built with Radiant
Honest feasibility first
We walk the house and the lot, listen to what you need, and tell you whether the addition you are picturing fits the structure, the setbacks and the budget. If a smaller or different addition would serve you better, we say so.
Engineering and permits
Stamped engineering on every structural change, plans that match the existing house, and permits pulled under ROC #367703 so every inspection is on record with the city.
The build, communicated
One point of contact the whole way. When something unexpected turns up inside a wall or under a slab, and in older Valley homes it often does, you hear about it the same day with options and numbers.
Tie-in, finish and final walk
The new space is finished to match the old, inside and out. We walk it with you room by room and we are done when you cannot find anything left to fix.
Who does the work
Our work is delivered by the most trusted subcontractors we know, and we back all of it from the first day on site to the final walk. Where a project calls for it, we partner with other contractors too. Shane brings five years of hands-on experience to every job and stays your single point of contact from start to finish.
Radiant is a faith-based company, named for Psalm 34:5: "Those who look to him are radiant." For your addition, that shows up in ordinary ways. We tell you the truth about the numbers, we show up when we say we will, and we treat your home like it belongs to people we care about, because it does. If your family is carrying something heavy during the build, we would be honored to pray for you.
Licensed, bonded, and easy to verify
Structural work is where an under-licensed contractor costs you the most, because the mistakes hide inside walls until they are expensive. Radiant Construction holds an Arizona KB-1 Dual Building Contractor license, ROC #367703, active and bonded. Look it up yourself before you hire us or anyone else. It takes two minutes.
Related work
If the list keeps growing past one addition, a whole home remodel may be the better project. We serve Phoenix, Scottsdale, Paradise Valley, Chandler, Queen Creek, Gilbert, Tempe and North Peoria.
Home addition questions we hear most
Can my house support a second story addition?
Many Valley homes can, but not all of them can as they stand. The foundation, the existing framing and the soil under the house all have to be evaluated by an engineer before anyone commits. Sometimes the answer is yes as-is, sometimes it takes reinforcing the foundation or specific walls, and occasionally a partial second story over the strongest part of the house is the smarter move. We tell you which one you are looking at before you spend money on full plans.
How much does a home addition cost in Phoenix?
It depends on what you are adding and what the existing house has to do to carry it. A second story costs more per square foot than a ground-floor addition because of the structural work, the roof, and tying in stairs and systems. A large ground-floor addition with a bathroom costs more than a simple bedroom. We give firm numbers after a walkthrough and an engineer's look, and the estimate is free.
Do I need a permit for a home addition?
Yes, every time. An addition changes the structure and the footprint of your home, and Phoenix and the surrounding cities require a building permit with plan review and inspections. We pull every permit under ROC #367703. An unpermitted addition surfaces during appraisals, insurance claims and home sales, where it costs far more to fix than permitting would have.
Can we live in the house during the addition?
Usually, yes, especially for a ground-floor addition, because most of the work happens outside the existing walls until the tie-in. A second story addition is more disruptive: the roof comes off in stages and there are stretches where the house is loud and dusty. We plan the sequence around your family and tell you honestly when the hard weeks will be.
How long does a home addition take?
Design, engineering and permit review usually take a few months and vary by city. The build itself runs from a couple of months for a straightforward ground-floor addition to longer for a full second story. We give you a real schedule once plans are approved and keep you updated against it.
Ready to talk about your project?
Tell us what you are hoping to do and we will give you an honest read on scope, permits, and budget. The estimate is free and so is the straight answer.
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