Kent · England
New-build mastic & snagging in Gravesend, Kent
New build mastic across Gravesend and nearby, with every bit of old sealant taken out first.
- Sealant work across a run of new homes
- Cracked caulk along new skirting
- New-build shower sealant that has already split
About our new build mastic in Gravesend
Our new-build work comes in two parts: plot mastic for developers, and putting right failed sealant for people who’ve bought a new home. Both get the same care over preparation. Typical jobs include gaps opening as the house dries out and settles and new-build shower sealant that has already split, across bathrooms & en suites, skirting & floors and plot handovers.
Small business units and shops in a town like Gravesend have floors that take heavy wear. Threshold and floor joints are best resealed before their edges start breaking away.
We stand behind the work with a 12-month guarantee.
- Place
- Gravesend (DA12, DA11)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Joints and finishes in Gravesend homes
Gravesend is close to the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so any gaps are best picked up early. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For new homes near Gravesend station, it’s worth checking the sealant early, while snags are still fresh. Around Gravesend, as everywhere, new build mastic is only as good as the preparation behind it.
Gravesend is about 9 miles north-west of Gillingham, in Kent. Wherever you are in the DA12 postcode area, we cover new build mastic for homes and businesses. Across Kent, we cover 922 places, and Gravesend is one of them. We also work in London, around 21 miles away.
Jobs for new build mastic in DA12 and DA11 is quoted and booked the same way as anywhere else. Whether your property is on Christ Church Road, Hillside Drive and Laurel Avenue or a nearby road, we can help. With the A2 and A226 close by, Gravesend is simple for us to get to. We also cover Windmill Hill (1 mile north-west), Milton-next-Gravesend (1 mile north-east), Denton (1 mile east), Singlewell or Ifield (1 mile south) and Northfleet (1 mile west). Further out, we also cover Maidstone (13 miles south-east), Dartford (7 miles west), Sevenoaks (13 miles south-west), Swanley (9 miles west), Kings Hill (11 miles south) and Foley Park (12 miles south-east).
Near you in Gravesend
In Gravesend, that means homes and buildings near Northfleet Urban Country Park, St John's Catholic Comprehensive and St John's Catholic Comprehensive, among other places. The closest station to Gravesend is Gravesend station, about 0.9 miles north-west of the centre. A little further out are Gravesham Museum (0.9 miles north-west) and Stone Castle (4.5 miles west). Open spaces near Gravesend include Sawyers Lake and Gad's Hill.
What sealant work cannot fix
In fairness, there are a few things sealant will not fix:
- Damaged fittings that need replacing
- Disputes or warranty claims with your builder
- Structural cracks in walls or ceilings
If you are not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.
Joints and surfaces we work on
- Skirting & floors
- Show homes
- Bathrooms & en suites
- Windows & doors
- Plot handovers
- Kitchens
Landlord and commercial work in Gravesend
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
What we do, step by step
You do not need to clear the whole room or building, just the space around the work. Everything nearby is protected, and the work takes anything from a few hours to several days, depending on the number of plots in most cases. For a job in Gravesend, we need access to where the work is and somewhere nearby to park. If the job is outside, mention gates, side access and anything above ground floor.
- We go through the snagging list or plot schedule and agree the joints to do.
- We cut out every bit of the failed or messy sealant.
- Surfaces are cleaned of building dust and primed where needed.
- A sealant chosen for each area goes in and is tooled smooth.
- Finally, each room is checked and you’re given the cure time.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- On commercial sites, let us know about site rules
- Tell us if parking is tricky
Getting a quote
Want a quote for new build mastic? Please call 0345 464 0079 or send us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Read more
Quotes for new build mastic in Gravesend
Your quote is based on your job. We take into account:
- The type of sealant required
- How many areas need sealing
- Access and height
- Whether old sealant or filler has to be cut out
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we will explain what it covers.
What we need to know
When you contact us, these details help:
- Whether it’s a home or a business
- Where the job is, and your postcode
- If someone has resealed it before
- Access, such as stairs, a lift or height
Getting a quote is simple: tell us what needs doing and where, and roughly how big it is. Photos by email help us understand the job, and we’ll take it from there.
Towns and villages near Gravesend
Also in Gravesend
Gravesend: your questions answered
Do you work for landlords with property near Gravesend station?
Yes. We work for landlords and agents as well as householders. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear price.
What guarantee comes with new build mastic in Gravesend?
Every job comes with our 12-month guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Is it normal for sealant to crack in a new home?
Lots of new homes see sealant crack early. Rushed application on dusty surfaces makes it worse.
What information do you need?
The location, the problem and the rough size of the job. Photos by email help too.
Can new sealant go on top of the old bead?
No. Fresh silicone doesn’t stick to the old layer, so sealing over the top fails quickly. We cut the old bead out completely.
How much does new build mastic cost in Gravesend?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
My new home is still under warranty. Should I contact you?
Start with the builder if you are in the snagging or warranty period. If it is not resolved, we can reseal it properly.
Can you do plot mastic on a new development?
Yes. We work through plots to your schedule, room by room. Tell us the plots and the joints involved for a clear quote.
Aftercare tips
Looking after new joints is easy, and it makes a real difference:
- Wait for the cure time before using a resealed shower
- Do not wait for the house to settle if water is getting through
- Resist patching a failed seal with a tube from the DIY shop
- Ventilate bathrooms well, especially in the first year
Watch the joints as the house settles. Small gaps can appear as the house dries and can be resealed later.
Lifting sealant traps moisture and mould behind it. Dealing with it before it goes black keeps the job straightforward.
Why it’s worth doing now in Gravesend
It often makes sense to do all the sealant items on a snagging list together. It’s one visit, one quote and one set of cure times to plan around. Draughts from a gap round a frame, damp under a sill or water behind a bath panel all start small, and early is when they’re cheapest and quickest to sort.
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why choose Mr Mastic in Gravesend
- Every job guaranteed for a year
- Sealant colour chosen to suit
- We agree the colour with you first
- Over 20 years’ experience
Take a look at our cost guide and our reviews.
DIY sealant or a professional job?
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.