South East England and London

New Build Mastic in Kent

Wherever you are in Kent, we can help with new build mastic. A clear quote before we start, and a one-year guarantee.

New Build Mastic across Kent

New build mastic across Kent

Plot mastic for developers and snagging failed sealant in new homes. Pick your town below to see the details for your area, or call or email us for a quick quote.

Biggest towns in Kent

About new build mastic in Kent

If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. While the builder’s snagging or warranty period runs, report it to them first, and if it isn’t put right, get in touch with us. Common call-outs are for sealant that never bonded to the surface and joints pulling apart as timber shrinks, across plot handovers, bathrooms & en suites and skirting & floors.

Good joint work is mostly preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. In total, it usually takes anything from a few hours to several days, depending on the number of plots.

First we work through your snagging list or plot schedule with you.
Failed or untidy sealant is cut out completely.
Each joint is cleaned of dust and grit, then primed if required.
A sealant chosen for each area goes in and is tooled smooth.
Each area is checked and left with its cure time.

What you will pay

What you pay reflects the work, not guesswork. That’s why we ask about the job first.

Why choose Mr Mastic

Arbo and Everbuild products
More than 20 years in sealant work
A 12-month guarantee on all work
Homes, businesses and hotels

Ask for a quote

We quote each job on its own, so start by telling us what you need. Simply phone 0345 464 0079 or send us an email and describe the job, and photos are welcome.

What’s near Maidstone

Typical jobs here are in homes near Paper Makers Arms, Maidstone Grammar School and St Philip's Church and the streets around them. You’ll also find River Len LNR (less than half a mile north-east), South Borough Primary School (within half a mile south) and St Augustine Academy (1.2 miles west). For rail, the closest station is Maidstone West station, about 0.6 miles north-west of the centre. Other landmarks nearby include Maidstone Carriage Museum (within half a mile north-west) and Oakwood Hospital (1.8 miles west). Not far away are Burham Down and Boxley Hills.

New homes and floors across Kent

Across Kent, from Maidstone, Ashford and Canterbury outwards, new homes go up alongside older streets. Snagging in new homes and floor joints in older ones are both part of the work.

From Victorian terraces to post-war new towns and modern estates, homes across the South East and London cover every era. Each needs the right sealant for its age and materials. Along the coast in Kent, holiday lets and guest houses can have bathrooms in near-constant use, which is hard on sealant and grout.

Maidstone: For new homes near Maidstone West station, it’s worth checking the sealant early, while snags are still fresh. Around Maidstone, as everywhere, new build mastic is only as good as the preparation behind it.

How to look after the new joints

Once the sealant has cured, a few habits help it last:

Do not seal over failed sealant yourself
Keep water off fresh sealant until it has cured
Open a window or run the fan after bathing
Avoid scourers and strong chemicals on sealant

Follow the cure time we give you before the area gets wet. Most silicones need around a day to cure enough for use.

Report failed sealant to the builder while you’re in the snagging period. Once it ends, the repair may be down to you so report it promptly.

Leave it or put it right?

Resealing everything on a snagging list in one visit is usually simpler than chasing joints one at a time. It’s one visit, one quote and one set of cure times for the lot.

What your quote should include

Is the old sealant removed completely?
How the colour is chosen
How much experience the applicator has
What preparation is included

Signs you need new build mastic

Sealant is often one of the last jobs before handover. Joints are not always cleaned of dust or primed, and the sealant sits on grit instead of the surface.

Most people get in touch when they notice something like this:

Sealant work across a run of new homes
Gaps between new skirting and floors
Smeared, uneven beads picked up at snagging
Shower seals failing in the first year or two

Work for landlords, hotels and businesses

We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.

If you manage several properties in or around Kent, jobs at different addresses can be quoted together. Send us the addresses and the work at each.

How we quote for new build mastic

We don’t publish a price list, because jobs vary so much. What we look at:

Whether the work is at height
Whether there’s mould to deal with
How many areas need sealing
Whether old sealant or filler has to be cut out

A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.

What we need to know

When you contact us, these details help:

The problem you’ve noticed
Whether it’s a home or a business
The rough size of the job
A few pictures by email, if you can

Getting a quote is simple: let us know the job and the location. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.

Kent questions

When is the best time to reseal in a new build?

That depends on the joint. Failed seals in wet areas need doing now, but cosmetic gaps can wait for movement to slow.

Can you quote for more than one area?

Yes. Just list everything you need and we’ll quote it together.

Is there any odour?

That depends on the sealant. Some smell for a while, some hardly at all.

Should I try DIY first?

It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.

Do you guarantee your work?

Yes, always. Each job is guaranteed for twelve months.

Are you ARBOMaster approved?

Yes. We hold ARBOMaster approved applicator status and we’re fully insured too.

Can you do plot mastic on a new development?

Yes. Second-fix sealing in bathrooms, kitchens, frames and floors is part of what we do. Good preparation keeps snagging to a minimum.