Mastic sealant contractors in The Hyde
Planning work on a mastic joint in The Hyde? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Mastic failing across several blocks on an estate
- Communal area joints that look neglected
- Brittle perimeter mastic across a building
Mastic sealing across The Hyde
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Mastic sealing in The Hyde
We work for building owners, landlords with commercial or block portfolios, managing agents and housing associations. A planned, building-by-building programme often works better than reacting to each complaint and we quote and schedule each building in turn. If you are dealing with draughts at frames across a block and failed external movement joints, we can help, on window and door perimeters on blocks, external wall and movement joints and communal kitchens and washrooms alike. A specialist sealant contractor works differently from a general builder: in The Hyde, that means joint design, primers and backing rod as standard.
Planning mastic work on a London block means notices to residents, access to flats and agreed working areas. Work is planned with the agent so residents get notice and access is arranged in advance.
We sign every job off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.
- Location
- The Hyde (NW9, NW4)
- Wider area
- Greater London
- Cover
- 12 months on every job
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Surface by surface
Window and door perimeters on blocks
We usually work through a block’s windows in a planned order. How each joint is reached is agreed at quote stage.
Communal areas
Joints at low level in communal areas take knocks from bins, bikes and buggies and tend to fail first.
Quoting for work in The Hyde
Each job is priced on its own details. The things that drive the figure:
- Specialist products, such as fire-rated or hygienic sealants
- Quantities, in metres or numbers
- Whether the work must be split into stages
- How much existing material needs removing
Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we will put a fixed figure on it.
What to include in your enquiry
Whether it’s one area or a whole building, the same details help:
- Asbestos survey details if the building is older
- Access details, including height
- Any specification or named product
- Whether the building will be occupied during the work
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.
When something else is needed
We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:
- Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
- Frames that are rotten, warped or broken
- Leaks from above rather than through a joint
If in doubt, call the office on 01277 525 020 or email us and we will say what we think.
Joints and surfaces we work on
- Communal kitchens and washrooms
- Balcony and threshold joints
- External wall and movement joints
- Shopfronts below residential blocks
- Communal entrances and stairwells
- Window and door perimeters on blocks
How a job runs
A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. The work itself usually takes a day or two for a single block, longer for an estate programme, and we clear our waste as we work. For a job in The Hyde, access comes first. Give us the hours we can be on site and we’ll schedule to suit.
- Each block or building is walked and the failed joints recorded with the likely cause.
- You get a fixed quote, priced per building where that helps your budgeting.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- Failed mastic is removed and the faces taken back to sound, dry material.
- Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
- Finished joints are looked over and the 12-month guarantee confirmed.
Preparing the site
- Agree which areas must stay open
- Share your working hours and any access restrictions
- Send asbestos survey details if the building is pre-2000
Get a fixed quote
For a fixed quote, ring 01277 525 020 or email the details over. Our quote form is another easy route.
Advice
Common questions from The Hyde clients
Can you work at a site such as Silk Bridge Retail Park, by The Hyde?
Yes, sites like Silk Bridge Retail Park are within our area, along with the rest of The Hyde. Send details of the unit and the work through our quote form for a quick quote.
Do you work for managing agents with blocks near Hendon station?
Yes. Blocks of any size are within what we do. Give us the building’s details and say how residents are notified, and we’ll quote and plan to suit.
Is asbestos a concern with old mastic?
Some mastics in pre-2000 buildings contain asbestos. We check the asbestos register or survey before disturbing it, and if it’s suspected, work stops until it’s tested.
Can you seal joints high up on a block?
Every block is different. We agree access with you at quote stage so the fixed quote reflects it.
Do you supply RAMS and insurance details?
Our credentials include CHAS, Constructionline and public liability insurance. For specific documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.
How do you choose the sealant?
Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
How long do sealant joints last?
It depends on movement, UV and weather, cleaning, traffic and the product. Sealant joints are maintenance items, so inspect them regularly.
Frames, entrances and external joints in The Hyde
Three care or nursing homes sit less than 2 miles from The Hyde. For owners and operators of care buildings, window perimeters and external joints are best renewed in planned phases around residents. For a London block, the agent or landlord normally handles notices to residents and access to flats. Our programme follows the access you agree with residents.
Owners of student blocks near Middlesex University (1 mile north of The Hyde) can schedule frame and external mastic for the summer vacation. If you own or manage units on a site such as Silk Bridge Retail Park, which lies south-east of The Hyde, failed mastic on frames, door surrounds and external joints can be dealt with unit by unit.
The Hyde is about 2 miles north of Neasden, in Greater London. We send applicators to The Hyde for mastic joints. The Hyde is one of 764 places we cover in Greater London for mastic joints. There’s a separate page for London, roughly 9 miles from The Hyde.
Commercial sites across NW9 and NW4 are covered. If your site is on Alpini Road, Catkin Road and Garrick Road or close by, we can quote for mastic joints. The Hyde sits on or close to the A5, which helps when planning parking and deliveries for the job. If your building is just outside The Hyde, we cover 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 afield, our area takes in 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).
Local landmarks in The Hyde
Locally, jobs take us to sites close to Moon Under Water pub, Brampton College and West Hendon Playing Fields and the streets around them. There’s a railway station in The Hyde itself: Hendon station. Nearby you will also find St Andrew's Hospital (1.5 miles south-east) and Church Farmhouse Museum (1.1 miles north-east). The countryside around The Hyde includes Parliament Hill and Darland's Lake.
Towns and villages near The Hyde
Also in The Hyde
Commercial clients in The Hyde
As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. We are fully insured, and our insurance certificate can go with the quote.
Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.
Do you need mastic sealing in The Hyde?
Occasionally the substrate fails, not the sealant, such as crumbling render, brick arrises or frame edges. If the edges are unsound, we say so before quoting the sealing.
These are often picked up first by site or facilities staff:
- The same joint failures repeated across a portfolio
- No planned programme for sealant
- Movement joints with sealant missing
- Leaks at window and door perimeters
Site managers at schools like The Hyde School can fit frame mastic into the summer works.
What to look for in a quote
- How long is the guarantee, and what does it include?
- Are they CHAS accredited or on Constructionline?
- Their plan for phasing and protecting the area
- Who will actually carry out the work