Greater London · England
The Hyde New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes for The Hyde, backed by a 12-month guarantee. Ask us for a quote.
- Sealant work across a run of new homes
- Messy sealant that spoils new finishes
- Gaps between new skirting and floors
New build mastic for homes and businesses in The Hyde
A new house keeps drying out and settling for its first couple of years. Timber dries and shrinks, and baths and trays settle, so sealant that was laid quickly before handover often cracks. Common call-outs are for skirting joints opening in the first winter and sealant applied over dusty or wet surfaces, on windows & doors, plot handovers and skirting & floors.
Shops, offices and commercial units across London have hard-wearing floors with movement joints that need resealing as they wear, while new homes need a neat, sound finish around frames, baths and kitchens before handover.
All our work comes with our 12-month guarantee.
- Where
- The Hyde (NW9, NW4)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Can I do it myself?
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. All the old material has to come out first.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Work for landlords, hotels and businesses
We also work for property managers and facilities teams in The Hyde and across Greater London. Several sites can be quoted together, and we are fully insured.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Towns and villages near The Hyde
Other services in The Hyde
Do you need new build mastic in The Hyde?
Once people move in, baths and trays take weight and bed down. If a bath wasn’t filled when it was sealed, the bead is stretched the first time it’s used.
Most people get in touch after spotting something like this:
- Cracked caulk along new skirting
- Frame joints opening as the plaster dries
- Sealant applied over dusty or wet surfaces
- Worktop and upstand sealant coming away
As a London address, The Hyde can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
What to look for in a quote
- The length of the guarantee
- Which colour the sealant will be
- What the cure time is
- What insurance they hold
What happens if it’s left?
Sealant done properly at handover means fewer callbacks. Every return visit for a failed seal takes time. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and by the time it shows on a wall or ceiling in The Hyde, the repair is bigger than the sealant job would have been.
We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote.
Why The Hyde customers choose us
- Fully insured
- Rated 4.9 stars on Google
- Experience in homes, commercial sites and hotels
- Quality sealants from Arbo and Everbuild
What we do, step by step
Once we’re on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take anything from a few hours to several days, depending on the number of plots. In The Hyde, 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.
- We start by going through the snagging items or plot schedule with you.
- The failed sealant is removed completely, with no layer left behind.
- Joints are vacuumed and cleaned of building dust.
- We prime where needed and apply a sealant suited to each joint.
- We tool every joint neatly and tell you when each area can be used.
Before we arrive
- Let us know about stairs, lifts or work at height
- Plan for the work area to be out of bounds to pets and children
- Clear items away from the joints we are working on
Get a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or drop us an email.
Read more
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Look at the sealant regularly in the first couple of years
- Avoid scourers and strong chemicals on sealant
- Don’t seal over failed sealant yourself
- Record problems with dated pictures
Clean the sealant with a mild detergent and a soft cloth. Keep scourers and harsh chemicals off it as they wear the bead.
Report failed sealant to the builder while you’re in the snagging period. After that, putting it right may fall to you so report it promptly.
New build mastic in The Hyde: local notes
Much of London’s new housing is flats in larger developments, where snags may need reporting through the developer or the managing agent. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you’ve bought a new home near Hendon station, the sealant around baths, showers and frames is worth checking in the first year or two.
The Hyde is about 2 miles north of Neasden, in Greater London. Wherever you are in the NW9 postcode area, our applicators can take on new build mastic. Our Greater London coverage runs to 764 places, and The Hyde is one of them. There’s also a page for London, about 9 miles away.
Jobs for new build mastic in NW9 and NW4 works the same way as everywhere else we cover. Whether your property is on Alpini Road, Catkin Road and Garrick Road or anywhere close by, we can help. Main roads around The Hyde include the A5, which makes travel easy. Neighbouring places we cover for new build mastic include West Hendon (1 mile north), Colindale (1 mile north), The Burroughs (1 mile north-east), Hendon (1 mile east) and Staples Corner (1 mile south-east). Further out, we also cover London (9 miles south-east), City of Westminster (6 miles south-east), Marylebone (6 miles south-east), Kensington (6 miles south), St Pancras (7 miles south-east) and Shoreditch (8 miles south-east).
Landmarks near The Hyde
We work in homes and buildings around Moon Under Water pub, Brampton College and West Hendon Playing Fields and the streets around them. The Hyde has its own railway station: Hendon station. A little further out are St Andrew's Hospital (1.5 miles south-east) and Church Farmhouse Museum (1.1 miles north-east). Open spaces near The Hyde include Parliament Hill and Darland's Lake.
FAQs for The Hyde
I let a flat near Hendon station. Can you help?
Yes, we work for landlords and letting agents. You can ring 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before any work starts.
Is parking a problem for a job in The Hyde?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly.
Can you quote for more than one area?
Yes, we can. More than one area can be quoted together.
What do you need from me for a quote?
A short description and the location, plus photos if you have them. If we need more, we will ask.
What sealant do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Do you guarantee your work?
Yes. Every job comes with a one-year guarantee.
Do you work in The Hyde?
Yes, we do. Our applicators work in The Hyde, and the service is the same as everywhere else.
Do you hold any approvals?
Yes. We’re an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Surface by surface
Windows and doors
A draught at a new window can be a missed or failed joint. We look at the joints and reseal where needed.
Bathrooms and en suites
Baths, showers, basins and trays in new bathrooms are the most common new-build reseal. We cut out the failed bead, clean and prime, and reseal with anti-fungal sanitary silicone.