Tidemark LLC

Tidemark LLC

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A "tidemark" is the high water mark on the docks, piers and beaches of coastal areas that see significant tide changes.

It is also the "Mark" of excellence when you need to hire a designer, contractor, or construction consultant. Tidemark is a Design Build General Contractor and Construction Management firm specializing in commercial construction, residential custom homes, and renovations. Our team of construction experts are viewed as the authority by many architects, engineers, inspectors, and consultants. We pride ourselves in developing solutions that are economical, sensible, durable, and elegant.

Photos from Tidemark LLC's post 04/02/2026

Customer: "Can you build me a bar that'll match this wall?"

Us: "Say no more. See you in a couple of weeks."

Photos from Tidemark LLC's post 12/19/2025

We are nearly finished with this gem from 1932. When a good friend calls and asks "who should I trust to renovate this house?" we 'un-retire' from renovation work ...Yes we have a love/hate relationship with old buildings, but we always seem to find a way to make it work.

Challenges included a previous (failed) attempt to repair some water damaged floor joists, a plumbing leak concealed by 4" of concrete under the bathroom tile, grading issues that funneled water into the basement and 93 years of deferred maintenance.

We are delighted to announce our dear friends are going to celebrate Christmas in their new (very old and cool) home.

Be very jealous of radiant heat under the throwback bathroom tile. Be very, very jealous.

Photos of the period correct master bath we added will come when one of us can stand upright and aim a camera.

If you want something that is old and tired transformed into a retro-mod amazing space, call us maybe.

Photos from Tidemark LLC's post 10/21/2025

The shorter days make concrete finishing a challenge, but there is a benefit.

The cooler weather lets the concrete cure slower and more uniform. This means less shrinkage and cracking, and a longer lasting surface.

Thanks to our friends at BIG for the trust and patience.

Night night.

Photos from Tidemark LLC's post 10/15/2025

Day 3- Our friends at abigplan.com are enjoying watching us uncover old foundations, the original front steps (in a completely different location) and literally tons of buried rubble.

We are masters of navigating construction unknowns.

If you want some good insight into the financial market unknowns, see the link in the comments and tune into David’s podcast on Saturday Mornings.

Photos from Tidemark LLC's post 10/14/2025

You have to crack a few eggs to make an omelette!

This ramp and porch are sinking but there’s not a single crack in any of it… because it’s 12-24” thick.

Thanks to David and Lynne for putting your trust in us. Now back to making noise.

09/13/2025

Some of you may remember us doing a LOT of custom kitchens the first 5 years of Tidemark.

Our General Manager, Jim Taylor has taken the reigns and is now leading our kitchen renovations.

Jim loves cooking, knows his way around the kitchen and insists on the finest craftsmanship. Whether you want to change out your countertops and sink, or completely reimagine your layout and finishes, reach out to Jim for a consultation.

Photos from Tidemark LLC's post 03/18/2025

We are just lousy with before and after photos… so here is a sweet “during and after” visual of a cool little project.

The plaster on these walls was falling off and our good friend called us for a solution.

After removing the unsafe plaster, it revealed brick in very good condition. Under that classy blue rug was old hardwood with super cool cast iron nosings.

So we switched gears, returned some drywall and left the brick exposed. We cancelled the carpet order and called Mr. Hardwood LLC! Keith was able to wiggle us into his schedule and we made it work.

Some k**b and tube wiring and questionable “updated” wiring was removed and new circuits were installed for modern LED lighting.

The cast iron nosings went to our shop to be sand blasted and then epoxy coated.

Once the floors and steps were re-finished we applieded a clear sealer to the brick, painted all of the railings and trim semi gloss white, and rolled a few fresh coats of an eggshell white on the drywall/plaster areas.

The black cast iron pieces look like jewelry to us.

What do you think?

09/26/2023

We had to go back and peek at tonight’s epoxy arts and crafts.

Better not be any flies in there or we will be wet sanding again tomorrow.

Good enough is the enemy of great.

Photos from Tidemark LLC's post 09/24/2023

This is one small step for the craftsmen at Tidemark, one giant leap for beer lovers in Central Delaware.

Photos from Tidemark LLC's post 08/23/2023

It’s all coming together!

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Telephone

Address


117 West Reed Street
Dover, DE
19904

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm