Kent · England
New-build mastic & snagging in Windmill Hill, Kent
Problem with your new-build sealant joints in Windmill Hill? We cut out the old, prepare the joints and apply the right sealant.
- Shower seals failing in the first year or two
- Cracks appearing as a new home settles
- Smeared, uneven beads picked up at snagging
How we handle new build mastic in Windmill Hill
New homes move as they dry out. Timber dries and shrinks, and baths and trays settle, so sealant that was laid quickly before handover often cracks. We’re often asked to deal with cracked caulk along new skirting and beads laid onto grit and dust from the build, across windows & doors, skirting & floors and plot handovers.
In and around Windmill Hill, floors range from older timber boards to tiles and newer finishes, from timber that moves with the seasons to tiles laid on concrete. The sealant at skirtings and thresholds has to suit the floor it meets.
We stand behind the work with a 12-month guarantee.
- Location
- Windmill Hill (DA12, DA11)
- Region
- Kent
- Guarantee
- One year on every job
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
When to call us in Windmill Hill
The wrong product is sometimes used in the wrong place: decorators’ caulk in a wet area, or a stiff sealant where there’s movement. Neither lasts long.
Keep an eye out for any of the following:
- Gaps behind new kitchen upstands
- Cracked caulk along new skirting
- Plot mastic for developers ahead of handover
- Joints pulling apart as timber shrinks
If you’ve bought a new home near Gravesend station, the sealant around baths, showers and frames is worth checking in the first year or two.
What your quote should include
- What product goes in the joint
- How the surfaces are prepared before sealing
- Whether they’re fully insured
- Whether all the old sealant comes out first
New build mastic in Windmill Hill: local notes
Windmill Hill is close to the coast. New homes near the sea put their outside mastic to work from day one, so it’s worth checking at snagging. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Around Windmill Hill, as everywhere, new build mastic is only as good as the preparation behind it.
Windmill Hill is about 1 mile north-west of Gravesend, in Kent. If you need new build mastic in Windmill Hill, it’s easy to get a quote: please ring 0345 464 0079 or email us. We’re based in Crawley and cover Kent, Windmill Hill included. Our area takes in 922 places across Kent. There’s also a page for London, about 21 miles away.
Postcode districts we cover here for new build mastic: DA12 and DA11. Local streets include New Road, Sun Lane and Joy Road, all of which we cover. You’ll find Windmill Hill on the A227, which makes it straightforward to reach. We also cover the places around Windmill Hill: Gravesend (1 mile south-east), Milton-next-Gravesend (1 mile north-east), Denton (1 mile east), Northfleet (1 mile west) and Painters Ash (2 miles south-west). Within a short drive, we also cover Maidstone (13 miles south-east), Dartford (6 miles west), Sevenoaks (13 miles south-west), Swanley (9 miles west), Kings Hill (11 miles south) and Foley Park (13 miles south-east).
Landmarks near Windmill Hill
Locally, jobs take us to homes and businesses close to St John's Catholic Comprehensive, Mayfield Grammar School and The Waterloo Public House, among other places. Windmill Hill’s nearest station is Gravesend station, roughly 0.5 miles north-west. A little further out are Gravesham Museum (0.5 miles north) and Stone Castle (4.1 miles west). Not far away are Sawyers Lake and Gad's Hill.
Windmill Hill questions
Will you come out to Windmill Hill?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Gravesend station. Can you help?
Yes, we work for landlords and letting agents. You can call 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before any work starts.
Can you do plot mastic on a new development?
Yes. We carry out plot mastic and second-fix sealing for builders and developers. Send the schedule and any specification and we’ll give you a quote.
Will it make a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
How long does new build mastic take?
Typically it takes anything from a few hours to several days, depending on the number of plots. Bigger jobs take longer, and we’ll tell you how long to expect.
Which products do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we’ll tell you what we’re using.
Landlords, agents and businesses in Windmill Hill
We work for landlords and letting agents as well as householders. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
What happens on the day
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours in a single home, and the area is left clean. For a job in Windmill Hill, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We start by going through the snagging items or plot schedule with you.
- The failed sealant is removed completely, with no layer left behind.
- Joints are vacuumed and cleaned of building dust.
- We prime where needed and apply a sealant suited to each joint.
- We tool every joint neatly and tell you when each area can be used.
Before we arrive
- Let us know if you’ve seen damp or leaks
- Let us know about stairs, lifts or work at height
- Tell us if parking is tricky
Get a quote
Getting a quote is simple: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand.
Related advice
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
What affects the cost of new build mastic
Call for a quick quote. What matters most is:
- How much old sealant there is and how hard it is to remove
- Whether there’s mould to deal with
- The number and length of the joints
- The type of sealant required
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.
Asking for a quote
Photos by email are helpful but not essential. Please mention:
- The type of property
- Roughly how big the job is
- Pictures of the joints, sent by email
- Access, such as stairs, a lift or height
Every job is quoted individually. Just call 0345 464 0079 or drop us an email with the details.
How the job changes by surface
Plot handovers
Send us the schedule and any sealant specification for a quote. We seal bathrooms, kitchens, frames and floors to the agreed spec.
Kitchens
As a new house dries, worktops and walls shift a little, opening gaps behind the upstand. A fresh flexible bead closes them.
Also near Windmill Hill
Also in Windmill Hill
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Open a window or run the fan after bathing
- Wait for the cure time before using a resealed shower
- Put sealant faults on your snagging list early
- Do not seal over failed sealant yourself
Leave the sealant for the cure time we give you before showering or bathing. Most silicones need around a day.
If a shower tray or bath seal splits in the first year, look for movement. Getting it resealed properly, and any movement checked, stops it recurring.