★★★★★
3 months ago
Demi Construction did an amazing job remodeling my master bathroom. The attention to detail and quality of work truly stood out.
— Oleksii L. · Local Guide
— Nocatee, FL · est. licensed
★ 5.0 / 9 reviews
Built on detail. Finished with care.
A licensed residential contractor in Northeast Florida — kitchens, baths, additions, and custom builds for homeowners who notice the seams.
Licensed
RRC #RR282812365
5.0
Google rating
0★
5-star reviews
Duval
County + nearby
A–Z
Permits → finishes
— Selected work
All services
Quiet rooms, loud craftsmanship.
01 — Kitchen
Custom cabinetry build-out
02 — Bath
Walk-in tile shower
03 — Outdoor
Custom deck build
Reviews
"They customized everything for me and helped with the design."
— Olha M. · 3 months ago
★★★★★
Read more
04 — Detail
Tile + grout precision
Have a space in mind?
Send us photos, sketches, or just an idea. We'll walk the space, talk the budget, and put it in writing.
— 02 / About the studio
A small crew. Big
standards.
Demi Construction LLC is a licensed residential contractor in Nocatee, Florida — led by Konstantyn and a team that treats every home like it's their own.
— Our philosophy
We don't chase the volume. We chase the seam that nobody else would have noticed — the line where tile meets vanity, where drywall meets ceiling, where the original work ends and ours begins.
Licensed
RR282812365
Based
Nocatee, FL
Serves
Duval County
Rating
5.0 ★
— How we work
Four steps. No surprises.
01
Walk-through
On-site visit, photo log, scope of work, and an honest gut-check on timing and budget.
02
Design fit
Material selections, layout decisions, and a written estimate — line by line, nothing buried.
03
Build
Permits pulled, schedule shared. We protect your space and keep clean comms throughout.
04
Punch + sign-off
Final walk, punch list closed, photos taken. You don't sign until you'd recommend us.
— What clients say
★ 5.0 average
Word of mouth,
in writing.
★★★★★
2 months ago
We replaced fixtures, the vanity, the sink, added shower doors — and they matched the tile floor for a seamless finish. SO fast.
— Wendy M. · Local Guide · 45 reviews
One of the best companies I've ever used. Very professional and helpful.
— Olha M.
I highly recommend Demi for any type of GC or handyman work — they do all our build-backs.
— Amanda B. · Local Guide
Built a deck for our short-term rental — craftsmanship is outstanding, structure feels incredibly solid.
— MOSAN LLC
Ready when you are.
Tell us about the project. We'll come measure, listen, and quote — no obligation.
— 03 / Services
8 disciplines
From permits
to punch list.
We're a full-service residential contractor — meaning one crew, one number, one point of accountability. Below is the work we take on most.
01
Most requested
Bathroom
remodels
Tile showers, vanities, fixtures, drywall, plumbing rerun, shower doors. Old tubs become walk-ins.
02
Kitchen renovations
Cabinetry, counters, appliances, layout.
03
Custom decks
Outdoor builds, pergolas, framing.
04
Additions
Square footage that fits.
05
Permits & filing
Pulled correctly. Closed properly.
06
Cabinetry & built-ins
Custom kitchen cabinets, vanity builds, storage solutions.
07
Drywall + tile
Patch, hang, mud, finish, set, grout, seal.
08
General contracting
General contracting
— everything else.
Plumbing, framing, build-backs, repairs. If it's residential, ask — we probably do it.
— The Demi difference
Why our clients come back.
i.
Single point of contact.
You text one number. Konstantyn or the lead picks up.
ii.
Clean job sites.
Floors covered, dust contained, debris hauled — daily.
iii.
Written estimates, line by line.
Nothing buried in "miscellaneous." You see every dollar.
iv.
Fully licensed and insured.
Florida RRC #RR282812365 — pull the public record.
Not sure where your project fits?
Send a few photos. We'll tell you what we'd do, what it costs, and whether we're the right shop for it.
Request a quote
— 04 / Contact
Replies within 24h
Let's talk
about your space.
Prefer to call? (904) 506-8480
— FAQ
Quick answers.
Do you handle permits?
Yes — we pull and close all required permits for your jurisdiction. It's included in your estimate.
How fast can you start?
Small jobs often start within a week. Larger remodels typically 2 – 4 weeks out depending on materials lead times.
Do you do design too?
We help with material selection, layout, and fixture sourcing. For full architectural design, we partner with local designers.
What areas do you serve?
All of Duval County and nearby — Jacksonville, Ponte Vedra, Nocatee, St. Johns, and the St. Augustine corridor.