Spire Constructors · Florida

Start at the top.

Then hold every floor to it.

One number. Daily photos. Owners who pick up.

Delray Beach · Serving all of Florida

Built to a Higher Standard.

Commercial ground-up and fit-outs. Custom homes and ADUs. Across Florida, with one number up front, a photo every day, and owners who pick up the phone.

Book a Free Consultation See the work
FL Certified General Contractor CGC1539625 · Licensed & Insured
50+Years of combined leadership
100+Projects delivered by our principals
CGC1539625Florida certified general contractor
StatewideDelray Beach based, all of Florida served
What we build

Two specialties. One standard.

Finished Parachute plasma donation center at dusk, storefront lit
Commercial

Ground-Up & Fit-Outs

Ground-up buildings and tenant build-outs for franchise owners, developers, medical practices and institutional owners. Medical, mixed-use, retail, restaurant and office. Occupied sites stay open while we work.

Explore Commercial
Backyard pool and lounge at a Delray Beach residence
Residential

Custom Homes & ADUs

Custom homes and accessory dwelling units built for Florida weather: impact glass, reinforced roofs, moisture-smart assemblies, and a budget you can see the whole way through.

Explore Residential
Rendering of a three-story modern residence with a detached rear ADU in Delray Beach
Rendering. 201 SW 2nd, Delray Beach: main house and rear ADU from the permitted set.
Featured · Accessory dwelling units

Add an ADU. Add income. Add value.

Most detached ADUs in South Florida land between $210,000 and $310,000 all-in for about 600 square feet, built to hurricane code. A one-bedroom brings an estimated $15,000 to $30,000 a year in gross rent at 2026 market rates, before vacancy, taxes, insurance and maintenance, and subject to your city's rental rules. The rules are set by your city or county, not the state. We handle the rules.

  • Your city or county's ADU ordinance and permitting, handled start to finish
  • Hurricane-rated and code-compliant from day one
  • Fixed-scope pricing, so you know your full cost before you commit
  • Designed for rentability and resale
Get the Free ADU Guide Book an ADU consultation
Why Spire

Level. Plumb. Square. On the number.

Press and hold the level. When it reads plumb, that is the standard every Spire job is held to.

7.0° off
Press and hold, or hold the space bar, until the level reads plumb.

One number up front

Fixed-scope pricing with open books. Changes get priced and signed before the work happens, never after.

A photo every day

Daily logs, progress photos and a client portal. You will never have to wonder where your project stands.

Owners on site

Bill and Gary run the job, not a junior super. Fifty years of building between them, and both pick up the phone.

Permits and inspections, handled

We run the permit and inspection path so you do not have to. Occupied buildings stay open while we work.

Beyond building

Plan it right from the start.

01 · Design-Build

One team, one accountability

One team for design and construction. Faster, with cost certainty earlier and nobody to point fingers at.

Learn more
02 · Pre-Construction

Know your number first

Budgets, value engineering, constructability review and scheduling before you commit capital.

Learn more
03 · Consulting

A builder on your side

Owner's representation and bid leveling for developers and institutions who want a builder on their side of the table.

Learn more
The work

Proof over promises.

Projects delivered by Spire's principals, Bill Breunig and Gary Kerber, over their careers. Real photos, named jobs.

Finished Parachute plasma lab exterior in Kentucky
Commercial · Ground-up biomedical
Parachute Plasma Lab · Kentucky
Entrance canopy of the AESC animal hospital in Springdale, Arkansas
Commercial · 20,000+ SF specialty hospital
AESC Animal Hospital · Springdale, AR
Delivered retail pad and finished site work at the Mall at Millenia
Commercial · Site and infrastructure
Mall at Millenia · Orlando
View all projects
Two landmark high-rises

Watch the reel.

One Archer and Eleven Times Square, New York. High-rise work from Bill Breunig's career before Spire.

Straight answers

The questions owners actually ask.

Your quote is higher than another bid. Why?
Low bids in Florida are usually incomplete bids. The gap comes back as change orders once your options are gone. We price the whole scope up front, in writing, and show you the breakdown.
How do you handle change orders?
In writing, priced, and signed by you before the work happens. Never after. If nothing changes, nothing changes on your bill.
Who runs my project day to day?
One of the owners. Bill or Gary is on your site and on your phone from the first estimate to the final walkthrough.
Are you licensed, insured and bonded?
Spire Constructors is a Florida Certified General Contractor, license CGC1539625, current and active. Look it up on MyFloridaLicense.com. We carry general liability and workers' compensation and will send certificates naming you as holder. Ask us about bonding for your project and we will answer in writing.
Can you work in an occupied building?
Yes. Medical offices, restaurants and retail stay open while we work. We phase the job around your hours, control dust and noise, and sequence inspections so your opening date holds.
How many projects do you take on at once?
Only as many as two owners can personally run. If we cannot give your project senior attention, we tell you before you sign, not after.
How do I know your subs get paid?
Lien releases with every draw, from us and from every sub. You never pay for work that is not in place, and nobody can lien your property for a bill we owe.
Do you build outside Florida?
Our principals have delivered projects in Florida, Kentucky, Arkansas and New York. Spire is licensed statewide in Florida and takes select projects nationally.
Ready to build?

Let's build something to a higher standard.

Free consultation, no obligation. You will talk to someone who has built what you are planning.

Book a Free Consultation or call (844) SPIRE-GC
Book a consultation

Tell us about your project.

One conversation, straight answers, and a clear next step. We reply within one business day.

Call
(844) SPIRE-GC
Email
info@spireconstructors.com
Based in
Delray Beach, serving all of Florida
Hours
Mon to Fri, 7AM to 6PM

Got it.

We will reach out within one business day. If it is urgent, call (844) SPIRE-GC.

Call NowBook Free