Greater London · England
Gipsy Hill New Build Mastic
Specialist new build mastic for Gipsy Hill: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Cracks appearing as a new home settles
- Messy sealant that spoils new finishes
- Kitchen sealant that has pulled off the wall
How we handle new build mastic in Gipsy Hill
A new house keeps drying out and settling for its first couple of years. Timber dries and shrinks, and baths and trays settle, and sealant applied in a hurry at handover can split. Typical jobs include cracked caulk along new skirting and gaps opening as the house dries out and settles, on show homes, windows & doors and kitchens.
Across London, commercial floors have movement joints that break down under heavy foot traffic, while new homes need a neat, sound finish around frames, baths and kitchens before handover.
A 12-month guarantee comes as standard.
- Place
- Gipsy Hill (SE19, SE27, SE21)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Surface by surface
Show homes
In a show home, the sealant is on display. Every bead is neat and coloured to suit the room.
Windows and doors
Draughts around new frames are often a sealant gap. We check and reseal the frame edges.
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
Nearby places to Gipsy Hill
More services for Gipsy Hill
What happens if it’s left?
Small cosmetic gaps can wait for the house to settle, but a leaking seal cannot. If you’re unsure which you have, call 0345 464 0079 or send us an email with photos. In a London flat, a failed joint rarely stays your problem alone: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
Why us?
- A choice of colours where the product allows
- We leave the area clean and tidy
- Approved under the ARBOMaster scheme
- Experience in homes, commercial sites and hotels
Take a look at how sealant jobs are priced or what customers say.
New homes and floors in Gipsy Hill
Much of London’s new housing is flats in larger developments, where snags may need reporting through the developer or the managing agent. Rainfall in the South East is lower than in much of the UK, 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 Gipsy Hill station, the sealant around baths, showers and frames is worth checking in the first year or two.
Gipsy Hill is about 3 miles south-east of Stockwell, in Greater London. Whether you’re in the middle of Gipsy Hill or further out, new build mastic is available for homes and businesses alike. Gipsy Hill is one of 764 towns and villages in Greater London where we work.
Jobs for new build mastic in SE19, SE27 and SE21 is quoted and booked the same way as anywhere else. We cover properties on Dover Road, Gipsy Road and Berry Lane. Other places close to Gipsy Hill include Upper Norwood (1 mile south-west), Norwood New Town (1 mile south-west), West Norwood (1 mile north-west), Crystal Palace (1 mile east) and West Dulwich (1 mile north). Within a short drive, we also cover London (5 miles north), City of Westminster (7 miles north-west), Marylebone (7 miles north), Kensington (7 miles north-west), St Pancras (7 miles north) and Shoreditch (7 miles north).
What’s near Gipsy Hill
Typical jobs here are in homes near Gipsy Hill Tavern, Hillcrest and Virgo Fidelis Convent Senior School and the streets around them. Gipsy Hill has its own railway station: Gipsy Hill station. Nearby you’ll also find Whitgift Centre (3.3 miles south) and St Christopher's Hospice (1.2 miles east). The countryside around Gipsy Hill includes Knight's Hill and Dulwich Upper Wood.
How it works
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and clear up. It usually takes a few hours in a single home. In Gipsy Hill, flats, stairs and shared entrances are part of the routine. If the building has a concierge, managing agent or access rules, tell us when you book.
- Each joint is checked for movement before we start.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- We check every joint and leave you with the cure times.
Before we arrive
- Mention any sign-in or site rules at work premises
- Let us know about parking restrictions
- Clear the area around the work
How to get a quote
Need a quote? Please ring 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Related advice
What sealant work cannot fix
We’ll always be straight with you, so here’s what sealant cannot fix:
- Your warranty claim itself, which is between you and the builder
- Leaking fittings rather than failed sealant
- Cracked trays, tiles or worktops
If in doubt, call 0345 464 0079 or email us and we will say what we think.
Joints and surfaces we work on
- Show homes
- Bathrooms & en suites
- Skirting & floors
- Kitchens
- Windows & doors
- Plot handovers
How we quote for new build mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- How much there is to do
- Whether the work is at height
- Any working-time requirements on site
- The product the joint needs
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before we start.
Helping us quote
Photos by email are helpful but not essential. Please mention:
- A few pictures by email, if you can
- If someone has resealed it before
- How we’d reach the joints
- How many joints, rooms or windows are involved
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or email us.
What we’re called out for in Gipsy Hill
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 first.
These are the problems we’re asked about most:
- Cracked sealant around new window and door frames
- Sealant applied over dusty or wet surfaces
- Gaps behind new kitchen upstands
- Gaps opening as the house dries out and settles
Gipsy Hill is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Comparing quotes
- The length of the guarantee
- What the cure time is
- How much experience the applicator has
- Whether all the old sealant comes out first
Common questions in Gipsy Hill
Do you cover Gipsy Hill for new build mastic?
Yes. Our work covers London and the South East, and Gipsy Hill is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job.
I let a flat near Gipsy Hill station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.
How long before the joint can be used?
Different products cure at different speeds, so please follow the time we give you.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
How much does new build mastic cost in Gipsy Hill?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.
Are you ARBOMaster approved?
Yes. We’re an ARBOMaster approved applicator.
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.
Can new sealant go on top of the old bead?
No. The old sealant is cut out fully, the joint cleaned and primed where needed, and a new bead applied.