Kent · England
New-build mastic & snagging in Upstreet, Kent
New build mastic for Upstreet, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Sealant that never bonded to the surface
- Second-fix sealing on new plots
- New-build shower sealant that has already split
How the job changes by surface
Show homes
Bathrooms, kitchens and frames in show homes are sealed or resealed to a neat finish to a tidy standard. We will plan around viewing times.
Plot handovers
Taking time over preparation reduces return visits. Dust from the build is removed first.
How we handle new build mastic in Upstreet
New homes move as they dry out. Timber shrinks, plaster dries and baths and trays bed down, so sealant that was laid quickly before handover often cracks. If you have sealant applied over dusty or wet surfaces and frame joints opening as the plaster dries, we can help, on skirting & floors, bathrooms & en suites and windows & doors alike.
Older homes in small places like Upstreet often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
Every job is covered by our 12-month guarantee.
- Where
- Upstreet (CT3)
- Region
- Kent
- Cover
- 12 months on all our work
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Landlords, agents and businesses in Upstreet
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll quote.
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.
DIY sealant or a professional job?
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Other services in Upstreet
What new build mastic looks like in Upstreet
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around Upstreet, as everywhere, new build mastic is only as good as the preparation behind it.
Upstreet is about 4 miles south-east of Herne Bay, in Kent. Anywhere in CT3, we can carry out new build mastic at your property. Our Kent coverage runs to 922 places, Upstreet among them. Our Chelmsford page covers work nearby, about 42 miles away.
Jobs for new build mastic in CT3 works the same way as everywhere else we cover. You’ll find streets such as St Mary's Gardens, Becketts Wood and Grove Ferry Hill. Nearby, we also carry out new build mastic in Grove (1 mile south), West Stourmouth (2 miles east), Sarre (2 miles north-east), Preston (2 miles south-east) and East Stourmouth (2 miles east). Larger places within reach include Canterbury (6 miles south-west), Margate (9 miles north-east), Dover (14 miles south), Ramsgate (9 miles east), Broadstairs (10 miles east) and Whitstable (8 miles west).
What’s near Upstreet
We work in homes and buildings around Grove Ferry Picnic Area, Spires Academy and The Grove Ferry Inn. The nearest railway station is Sturry station, about 3.8 miles south-west of the centre. Other landmarks nearby include St Martins Hospital (5.2 miles south-west). Green spaces nearby include West Blean and Thornden Woods.
Common questions in Upstreet
Do you cover smaller places like Upstreet?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is Upstreet in your area for new build mastic?
Yes. Our work covers London and the South East, and Upstreet is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.
Do you work for letting agents?
Yes. As well as homeowners, we work for landlords, agents, businesses and hotels in Upstreet.
Will it make a mess?
No. The area is protected while we work and cleaned up afterwards.
Is it worth resealing while the house is still settling?
Where water is getting through, do not wait. Hairline cosmetic gaps can wait until the house has settled.
Do you use white or clear sealant?
That depends on what the joint meets: white or clear for most sanitary joints, colours for worktops, floors and frames. We will agree it with you first.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Keep photos and emails about snagging items
- Act quickly if a seal starts to leak
- Look at the sealant regularly in the first couple of years
- Wipe joints with warm soapy water
Keep the bathroom ventilated, especially in the first year. Run the fan or open a window after bathing to help keep mould away.
Don’t let the snagging period run out with sealant problems unreported. Once it ends, the repair may be down to you so report it promptly.
Do you need new build mastic in Upstreet?
Baths and trays settle under load once the home is lived in. If a bath wasn’t filled when it was sealed, the bead is stretched the first time it’s used.
Any of these means the joints need attention:
- New-build shower sealant that has already split
- Gaps behind new kitchen upstands
- Cracked caulk along new skirting
- Second-fix sealing on new plots
For new homes near Sturry station, it’s worth checking the sealant early, while snags are still fresh.
Questions to ask before you book
- How much experience the applicator has
- How the joint is cleaned and prepared
- What the quote includes, VAT included or not
- Whether the sealant suits the joint
What affects the cost of new build mastic
Jobs vary more than people expect. What affects the quote:
- Any mould that needs treating
- How many rooms, windows or areas are involved
- Which sealant suits the joint
- Access and height
Doing several joints on one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Helping us quote
You do not need to know the technical terms. It helps if you can tell us:
- The rough size of the job
- If someone has resealed it before
- Pictures of the joints, sent by email
- The address or postcode of the job
To get a quote, call 0345 464 0079 or drop us an email with the location and a short description of the problem. You will have a clear quote before any work starts.
What we do, step by step
We keep the work tidy and contained to the joints we’re treating, so you can get on with your day. Expect the work to take a few hours for most snagging lists, longer for a run of plots, and we explain the cure time before we leave. Somewhere like Upstreet needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We go through the snagging list or plot schedule and agree the joints to do.
- The old bead comes out in full, with no layer left behind.
- Each joint is cleaned of dust and grit, then primed if required.
- We apply a sealant that suits each joint and tool it to a neat finish.
- Each area is checked and left with its cure time.
How to prepare
- For business premises, tell us about site rules or sign-in
- Let us know about parking restrictions
- Clear items away from the joints we’re working on
Get a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, call 0345 464 0079 or drop us an email.