Kent · England
Tower Hamlets New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes for homeowners, landlords and businesses in Tower Hamlets. Fully insured, ARBOMaster approved and guaranteed for a year.
- New-build shower sealant that has already split
- Messy sealant that spoils new finishes
- Beads laid onto grit and dust from the build
New build mastic in Tower Hamlets
Dust is the enemy of new-build sealant. We clean every joint thoroughly and prime where the surface and product need it, so the new bead bonds properly. Common call-outs are for cracked caulk along new skirting and second-fix sealing on new plots, across show homes, skirting & floors and plot handovers.
Homes around Tower Hamlets range from older cottages to newer houses, and their floors range just as widely, each moving in its own way. The sealant at skirtings and thresholds has to suit the floor it meets.
Every job is covered by our one-year guarantee, wherever you are in Kent.
- Location
- Tower Hamlets (CT17, CT16, CT15)
- Region
- Kent
- Cover
- One year on every job
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Leave it or put it right?
The builder is normally the first port of call while the snagging or warranty period runs. If it’s slow, or the same joint keeps failing, a proper reseal from a specialist is the next step. In a smaller place like Tower Hamlets, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why us?
- Colour picked to suit the job
- Experience in homes, commercial sites and hotels
- Colour agreed with you before work begins
- Anti-fungal silicone where joints get wet
Read how sealant jobs are priced and customer reviews.
What affects the cost of new build mastic
Your quote is based on your job. We take into account:
- The number of rooms or windows
- The amount of work
- Whether there’s mould to deal with
- How much old sealant there is and how hard it is to remove
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Helping us quote
Before you ask for a quote, have a think about:
- Any access issues, like height or stairs
- Any previous sealing or DIY work
- Pictures of the joints, sent by email
- If it’s domestic, commercial or a hotel
Need a quote? Please phone 0345 464 0079 or drop us an email with a few details. We will explain what we’d do and give you a clear price before any work starts.
FAQs for Tower Hamlets
I let a flat near Dover Priory station. Can you help?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or email us with the details for a clear quote.
Will you come out to Tower Hamlets?
Yes, we do. We work across 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 it worth resealing while the house is still settling?
If the seal has failed and water is getting in, do it now. Small gaps that are just cosmetic can be resealed once movement has slowed.
Do you guarantee your work?
Yes: twelve months. If anything is not right with the work within the year, let us know and we will sort it.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We will tell you how long to leave the joint before we leave.
What do you need from me for a quote?
A short description and the location, with pictures by email if possible. If we need more, we will ask.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference.
Who should fix failed sealant in a new build?
Your builder, if you are still in their snagging or warranty period. If that does not work out, we are happy to quote and our work is guaranteed for a year.
Honest limits
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Deciding who is responsible under a builder’s warranty
- Broken tiles or a split tray
- Leaking fittings rather than failed sealant
If you are not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer.
Joints and surfaces we work on
- Windows & doors
- Skirting & floors
- Bathrooms & en suites
- Show homes
- Kitchens
- Plot handovers
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Check bath and shower seals every few months as the house settles
- Photograph failed sealant before it’s redone
- Don’t wait for the house to settle if water is getting through
- Clean sealant with mild detergent, not abrasives
Keep an eye on the joints over the first couple of years. Hairline gaps can open as timber and plaster dry and can be resealed later.
Lifting sealant traps moisture and mould behind it. Resealing before mould gets in keeps the job straightforward.
New build mastic around Tower Hamlets
Tower Hamlets is close to the coast. New homes near the sea put their outside mastic to work from day one, so any gaps are best picked up early. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you’ve bought a new home near Dover Priory station, the sealant around baths, showers and frames is worth checking in the first year or two.
Tower Hamlets is about 1 mile south of Dover, in Kent. From the centre of Tower Hamlets to the outskirts, new build mastic is available for homes and businesses alike. Tower Hamlets is one of 922 towns and villages in Kent we cover. We also work in Chelmsford, around 55 miles away.
Work in CT17, CT16 and CT15 is quoted and booked the same way as anywhere else. You’ll find streets such as Cow Lane, Odo Road and Eric Road, and we cover them all. Tower Hamlets sits on or near the A256. Neighbouring places we cover for new build mastic include Charlton-in-Dover (1 mile north-east), Guston (2 miles north-east), Church Whitfield (2 miles north), East Langdon (3 miles north-east) and West Cliffe (3 miles north-east). Larger places within reach include Canterbury (14 miles north-west), Folkestone (7 miles south-west), Ramsgate (15 miles north), Deal (7 miles north-east), Hythe (10 miles south-west) and Walmer (7 miles north-east).
What’s near Tower Hamlets
Typical jobs here are in homes near St Edmund's Catholic School, High Meadow and Dover Grammar School for Girls, among other places. There’s a railway station in Tower Hamlets itself: Dover Priory station. A little further out are Dover Castle (1 mile east) and Royal Victoria Hospital (within half a mile east). Green spaces nearby include Dover Western Heights.
How the job changes by surface
Windows and doors
External mastic around new windows and doors is sometimes rushed or missed. It’s resealed with an exterior sealant suited to the frame and wall.
Bathrooms and en suites
New-build bathrooms and en suites are where sealant fails most often. The old sealant comes out and anti-fungal sanitary silicone goes in after cleaning and priming.
Nearby places to Tower Hamlets
What else we do in Tower Hamlets
Do you need new build mastic in Tower Hamlets?
If plaster or screed was still damp when it was sealed, the bond suffers. Site programmes don’t always leave time for joints to dry before the sealant goes on.
Look out for these signs:
- Sealant that never bonded to the surface
- Frame joints opening as the plaster dries
- Shower seals failing in the first year or two
- Cracks appearing as a new home settles
In and around Tower Hamlets, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Questions to ask before you book
- How long the guarantee is
- How the joint is cleaned and prepared
- Is VAT in the price?
- What the cure time is
What happens on the day
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours for most snagging lists, longer for a run of plots. Parking around Tower Hamlets is normally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- Every bit of the old builder’s sealant is cut out down to clean surfaces.
- Joints are vacuumed and cleaned of building dust.
- Primer goes on where the surface and product need it, then the new sealant.
- We tool every joint neatly and tell you when each area can be used.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Mention any sign-in or site rules at work premises
- Try not to wet indoor joints just before the visit
Getting a quote
There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or email us.