Fortune Green construction mastic
Work needed on a mastic package in Fortune Green? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Old sealant on a refurbishment that needs stripping before new work
- A mastic package split between trades with no clear owner
- Caulk cracking where joints are moving more than expected
Construction mastic in Fortune Green
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
When it isn’t the sealant
Not every problem is a sealant problem, and we’d rather tell you before you spend money. It won’t fix:
- Defective windows, doors or glazing units (the supplier or installer’s job)
- Designing joint widths or choosing the specification (that sits with the designer)
- Deciding which fire-stopping product a penetration needs
If in doubt, speak to us on 01277 525 020 or send details through our quote form and we’ll say what we think before you book.
Joints and surfaces we work on
- Cladding and panel joints
- Floor and skirting junctions
- Sanitary and kitchen joints
- Brick and block movement joints
- Window and door perimeters
- Internal decorators’ caulk
Construction mastic in Fortune Green, done properly
External mastic depends on the weather in a way most internal trades don’t. Cold or damp mornings, frost and condensation on frames can all hold external sealing up. Internal sealing often fills those days. Site teams most often ask us about old sealant on a refurbishment that needs stripping before new work and caulk cracking where joints are moving more than expected, across brick and block movement joints, window and door perimeters and sanitary and kitchen joints. A single leaking joint is often how a building in Fortune Green first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.
Building sites in London tend to be tight: small compounds, delivery slots and shared hoists and scaffold. Mastic is typically one of the last trades on each elevation or floor, so we keep to the programme and the order of trades the site sets.
The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.
- Where
- Fortune Green (NW3, NW6, NW2)
- Region
- Greater London
- Guarantee
- 12 months on every job
- Quotes
- A fixed quote before we start
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Also near Fortune Green
Other services in Fortune Green
How a job runs
Before we leave any area, the masking comes off, the area is cleaned and every joint is checked with your site contact. If an area should be left alone while the sealant cures, we say how long and put signs out. Most London premises stay occupied while we are on site, so we agree zones and timings with the building or facilities manager. Phased work keeps the rest of the building in use.
- Drawings, specification and programme come to us.
- Quantities are measured and a fixed price returned.
- We agree with the site team which areas come first.
- Plots or floors are sealed as they’re handed over.
- Joints are prepared, backed and sealed to the specification.
- Snags are cleared and the package signed off with our 12-month guarantee.
What we need from you
- Have the specification and drawings to hand
- Point out parking and an unloading spot
- Let building users know which areas are affected
Request a quote
The quickest route to a quote is a few photographs and the site postcode. Upload them with the quote form, or phone 01277 525 020 or email us to discuss it first.
Related advice
Different surfaces, different methods
External facade and movement joints
Movement joints in the facade are sealed with a product suited to the expected movement. We set the depth with backing rod to avoid three-sided adhesion.
Fire-rated sealant where specified
Fire-rated sealant forms part of some packages, installed to the product’s tested detail where it is specified. Fire stopping design belongs to the designer and building control.
Commercial clients in Fortune Green
Building owners and managing agents use us on everything from one building to a spread of sites. Several sites can go on one quote, so there’s one set of paperwork to deal with.
Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Sites in Fortune Green can sit alongside others in a wider programme across Greater London.
Construction mastic in Fortune Green: the local picture
The area within 2 miles of Fortune Green holds plenty of hotels. Hotel schemes tend to have fixed reopening dates, so the mastic is programmed tightly with the other trades. Every borough of Greater London is inside the ULEZ, and that applies to contractors’ vehicles on any job in Fortune Green. Add booked deliveries and tight storage, and the mastic package needs planning with the site team.
New units and refits on sites such as The Quadrant Business Centre, 1.2 miles south-west of Fortune Green, need their panel and perimeter joints sealed to the specification. For a contractor at a hotel such as MB Hotel (0.6 miles north-west of Fortune Green), the mastic often has to be finished before a reopening date. Building work at universities like Regent's University London, 2.7 miles south-east of Fortune Green, is often timed for the summer, mastic included.
Fortune Green is about 1 mile west of Hampstead, in Greater London. Looking for construction mastic in Fortune Green? We can help. Across Greater London, 764 places are covered, including Fortune Green. We also cover London, some 6 miles away.
If you need construction mastic in NW3, NW6 and NW2, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. We cover commercial and managed buildings on Mill Lane, Ajax Road and Sarre Road. We also cover West Hampstead (1 mile east), Childs Hill (1 mile north), Hampstead (1 mile east), Greenhill (1 mile east) and Vale of Health (1 mile north-east). Bigger towns within reach include London (6 miles south-east), City of Westminster (3 miles south-east), Marylebone (3 miles south-east), Kensington (4 miles south), St Pancras (4 miles south-east) and Shoreditch (5 miles east).
Around Fortune Green
In Fortune Green, that means premises near Holly Bush pub, St Vedasts School For Boys and Kilburn Grange Park and the streets around them. The closest station to Fortune Green is West Hampstead Thameslink station, roughly 0.5 miles south. Other landmarks nearby include Montfichet's Tower (4.9 miles south-east) and O2 Centre (0.8 miles south-east). Open spaces near Fortune Green include The Long Water and Westbere Copse.
Doing it in-house
Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
What happens if it’s left?
When a package runs over budget, downgrading the product is a common first thought. A failed joint in the defects period costs far more than the product difference, especially externally. We price the specified product and will tell you plainly where an alternative would or wouldn’t work. In a London building, a failed joint rarely affects only one party. Putting it right early is less disruptive than dealing with the consequences.
Small jobs and large programmes are priced from the same things: 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.
Why clients in Fortune Green choose us
- Joints cleaned back to sound surfaces
- Coloured sealants to suit the setting, where available
- 12 months’ guarantee on every job
- Colour agreed before work starts
See our cost guide and how we’re accredited.
Questions we’re asked in Fortune Green
Do you work in London buildings with loading restrictions?
Yes. Booked loading bays, goods lifts and permit-to-work systems are normal for London jobs. The building manager’s rules go straight into our method.
Can you work at a site such as The Quadrant Business Centre, by Fortune Green?
Yes. Our area takes in Fortune Green and its surroundings, with estates and business parks such as The Quadrant Business Centre included. A few photos and the unit address let us price the work.
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.
Can one quote cover more than one building?
Yes. We take on portfolio and planned maintenance work, with each site phased to suit its occupants.
What about RAMS and site documents?
Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm them with the quote.
What happens if old sealant might contain asbestos?
The duty to manage asbestos sits with the building’s dutyholder, so for older buildings we ask for the asbestos register first. Work pauses if suspect material is found, until it has been tested.
When can the area be used after sealing?
That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, so we’ll confirm the curing time on the day.