
Golders Green construction mastic
Planning work on a mastic package in Golders Green? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Snag items on joints that need redoing before handover
- Internal caulk splitting as the building dries out
- Different trades sealing to different standards
Need construction mastic in Golders Green?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Construction mastic in Golders Green, done properly
On refurbishments, the mastic package usually includes cutting out old sealant as well as sealing new work. Old beads come out completely, as fresh silicone can’t grip old. After that, the joints are prepared and sealed to the specification. Site teams most often ask us about a mastic package split between trades with no clear owner and sealant knocked or painted over by other trades, across brick and block movement joints, floor and skirting junctions and internal decorators’ caulk. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Golders Green, preparation and product choice get the time they need.
A great deal of London construction is refurbishment of occupied or part-occupied buildings, alongside new blocks. Replacement windows, recladding and fit-outs leave perimeter and facade joints to seal, often next to people still using the building.
Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.

- Location
- Golders Green (NW11, NW2, NW3)
- Region
- Greater London
- Guarantee
- 12 months on every job
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026
When it isn’t the sealant
Part of a good diagnosis is knowing where sealant stops. We will tell you if the real problem is any of the following:
- Deciding which fire-stopping product a penetration needs
- Rework caused by others damaging completed areas
- Joint design decisions that belong to the architect or engineer
Not sure which it is? You can call the office on 01277 525 020 or email a schedule or drawings and we’ll tell you honestly.
Joints and surfaces we work on
- Brick and block movement joints
- Internal decorators’ caulk
- Floor and skirting junctions
- Window and door perimeters
- Cladding and panel joints
- Sanitary and kitchen joints
What affects the price in Golders Green
Before we quote, we look at:
- Site requirements such as inductions and permits
- How accessible the joints are
- Location, for remote and island sites
- Phasing around occupants
Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.
What we need to price the job
Diagnosis starts before we arrive. Let us know:
- The site address and postcode
- Access details, including height
- Clear photos of the problem areas
- Any dates the work must fit around
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, call the office on 01277 525 020 or send details through our quote form.
When to call us in Golders Green
On a live site, contamination is the biggest threat to a new joint. Dust, film adhesive, damp and grease on the joint faces prevent a proper bond, so preparation matters as much here as on a reseal.
Site and facilities staff are often the first to spot these:
- Failed sealant in an existing building being refurbished
- Different trades sealing to different standards
- New external sealant already peeling away
- Internal caulk splitting as the building dries out
For contractors at a college like College of North West London, which lies south-west of Golders Green, perimeters and internal sealant are timed for the holidays.
Questions to ask before you book
- Are they CHAS accredited or on Constructionline?
- Will RAMS and insurance details be available?
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Will failed sealant be removed rather than covered?
Construction mastic around Golders Green: points for this area
The area within 2 miles of Golders Green holds a good number of hotels. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up. Site traffic in Golders Green falls within London’s ULEZ, like everywhere else in Greater London. Deliveries are booked and storage is tight, so mastic materials come in as needed.
On a campus such as Middlesex University (2.4 miles north-west of Golders Green), new teaching buildings and residences are typically built and refurbished around the academic year. Recladding or extending a unit at a site like Brent Cross Shopping Park, 1.1 miles west of Golders Green, brings panel joints and frame perimeters into the programme.
Golders Green is about 1 mile north of West Hampstead, in Greater London. Commercial clients in Golders Green use us for work on mastic packages, as part of our coverage of Greater London. Across Greater London, 764 places are covered, including Golders Green. London is covered too, some 7 miles away.
Postcode districts covered here: NW11, NW2 and NW3. Streets here include Nant Road, Hoop Lane and Park Avenue, and sites on any of them can send details for a fixed quote. If your building is just outside Golders Green, we cover Temple Fortune (1 mile north), Childs Hill (1 mile south), North End (1 mile south-east), Hampstead Garden Suburb (1 mile north-east) and Vale of Health (1 mile south-east). Nearby towns on our patch include London (7 miles south-east), City of Westminster (5 miles south-east), Marylebone (4 miles south-east), Kensington (5 miles south), St Pancras (5 miles south-east) and Shoreditch (6 miles south-east).
What’s near Golders Green
In Golders Green, that means premises near Childs Hill Park, The King Alfred School and The Old Bull and Bush pub and the streets around them. The closest station to Golders Green is Cricklewood station, about 1.2 miles south-west of the centre. Nearby you will also find Kenwood House (1.3 miles east) and Brent Cross Shopping Centre (1.1 miles west). The countryside around Golders Green includes Parliament Hill and Darland's Lake.
Keeping the joints sound
A few simple habits keep the new joints working:
- Release areas for mastic once other trades have finished in them
- Record the products used in the O&M file
- Keep scrapers and abrasive pads off new beads
- Stick to the specified sealant rather than a generic substitute
Record which products went where in the handover file. Future maintenance is easier when the products are known and avoids guesswork when joints are renewed. Tell us what records you need and we’ll confirm with the quote.
Sealing outside when the joint is damp or too cold leads to poor adhesion. Holding off until conditions suit avoids callbacks.
Questions we’re asked in Golders Green
Do you take on work at healthcare sites like Nuffield Health Highgate Hospital?
Yes, healthcare and care buildings are part of our work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Can you work at a site such as Brent Cross Shopping Park, by Golders Green?
Yes. We cover Golders Green and the area around it, including industrial estates, business parks and retail parks such as Brent Cross Shopping Park. To start, just call 01277 525 020 or email drawings and photos with the unit, the joints involved and your access times.
Do you cover Golders Green?
Yes. We cover Golders Green, and you can call 01277 525 020 or send details through our quote form to get started.
How do we ask for a quote?
It works in four steps: send details, get a quote, we seal, guaranteed. Step one needs little more than photographs and a postcode.
Will you just go over the old sealant?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
Do you take on multi-site work?
Yes. A group of buildings can go on one quote, and you deal with one contact throughout.
Does weather matter for sealant work?
For external joints, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.
Towns and villages near Golders Green
More services for Golders Green
Why it’s worth doing now in Golders Green
Clearing snags piecemeal is tempting when handover is close. A planned sweep of each plot or floor catches the lot in one go and saves applicators coming back again and again. Snagging can be priced as a separate stage. Getting scaffold, permits or access booked in Golders Green takes effort, so while access is arranged it pays to renew all failing joints, not just the worst.
The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote and we will explain how it’s made up.
Why us?
- One phone line for London, the South East and Scotland
- 12 months’ guarantee on every job
- Failed material removed, not covered up
- Commercial sealant work since 2005
Take a look at how commercial sealant jobs are priced and how we’re accredited.
Our process
Inspect, seal, sign off: every visit follows that pattern. First comes an inspection and agreement on scope, then we prepare and seal each joint with the specified product, and the job ends with a walk round and sign-off. Planning a London job such as one in Golders Green starts with access. Give us the hours we can be on site and we will schedule to suit.
- We price from the drawings, specification and programme you send.
- You receive a fixed quote listing scope, products and phasing.
- You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
- Work follows the programme, area by area, as rooms and elevations become ready.
- Every joint is prepared, set to depth and sealed with the specified product.
- We close out snagging and hand over with a 12-month guarantee.
What we need from you
- For older buildings, check the asbestos register before work
- Send any specification or drawings in advance
- Flag any permit to work we will need
Ask for a quote
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, give us a call on 01277 525 020 or email a schedule or drawings.