Northfields facade sealing
Need facade sealing in Northfields? It’s simple: send details, get a quote, we seal, guaranteed.
- Failed sealant on precast panel joints
- Water coming in around window frames
- Previous reseals run over old sealant
Facade sealing for Northfields sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How a job runs
Tell us your site hours and access windows and we will plan around them. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. The ULEZ covers the whole of Greater London, and parking near a job is rarely simple. Let us know about any on-site parking or loading arrangements when you send the job details.
- We look at the joints, the drawings and the access before pricing.
- Failed sealant is cut out along its full length.
- Joint faces are cleaned to firm, sound material, with primer where the sealant maker specifies it.
- Backing rod, or bond-breaker tape in shallow joints, limits the depth.
- A facade-grade sealant rated for the movement goes in, tooled to a concave profile.
- The completed runs are checked with you, then the 12-month guarantee applies.
Before we start on site
- For older buildings, check the asbestos register before work
- Share your working hours and any access restrictions
- Move anything stored against the joints
Get a fixed quote
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.
Related advice
Facade sealing for commercial buildings in Northfields
Every facade quote starts with how the joints will be reached. Tell us about access: whether scaffold is already up, what the client is arranging, and any restrictions on the site. We work on stone and brick facade joints, shopfront frames and perimeter joints where frames meet the structure, and the usual reasons a site gets in touch are water coming in around window frames and facade joints cracked through the middle. Whoever orders the work in Northfields, the brief is typically the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
Around Northfields, as across London, much of the work is refurbishing existing buildings as well as building new ones. New frames, overcladding and fit-outs all end in perimeter and facade joints, frequently with occupants close by.
Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.
- Where
- Northfields (W5, W13, TW8)
- Wider area
- Greater London
- Guarantee
- A 12-month guarantee
- Price
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Owners, agents and contractors
For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first, and our applicators hold CSCS cards.
We work for building owners and managing agents on sealant work across single buildings or whole portfolios around Northfields. Several sites can go on one quote, so there’s one set of paperwork to deal with.
Common questions from Northfields clients
Do you work in London buildings with loading restrictions?
Yes, we plan every London job around the building’s own access rules. Share the building’s contractor rules and we’ll work to them. All of Greater London is inside the ULEZ, and our planning allows for it
Can you work on a hospital site such as Clayponds Hospital?
Yes, hospitals are one of the sectors we cover. We follow the site’s permits, sign-in and infection-control procedures in every area.
How long do sealant joints last?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.
Can one quote cover more than one building?
Yes. A group of buildings can go on one quote, and you deal with one contact throughout.
Does weather matter for sealant work?
Outside, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.
Will rain stop the work?
We can work through the year, but sealant needs a dry joint and temperatures within the product’s range. Cold, damp mornings can delay a start, so we plan around the forecast.
Are you insured?
Yes. Mastic Doctor is fully insured, public liability included.
General trades versus a specialist
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
Redoing a failed joint typically costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
Surface by surface
Coping and flashing joints
Sometimes the coping or flashing itself has failed. Where the issue isn’t the sealant, we say so.
Cladding panel joints
On sealed panel systems, every joint keeps water out. We cut out failed joints along their full length and rebuild them.
Facades, frames and programmes in Northfields
As part of Greater London, Northfields is inside the ULEZ, which applies to every van on site. London sites also mean booked deliveries and limited storage, which the mastic programme has to allow for. Northfields has plenty of hotels close by, all within 2 miles. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up.
Hospital estates such as Clayponds Hospital, 0.7 miles to the south-east of Northfields, tend to grow and change in phases, often next to occupied wards, so facade and perimeter sealing has to fit the estates team’s plan. Units on estates such as Phoenix Trading Estate, 0.7 miles to the south-east of Northfields, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal. Hotel extensions and refits, at places such as Best Western Northfields Ealing Hotel, which lies south-west of Northfields, normally run between busy periods, so the sealing is squeezed into short windows.
Northfields is about 1 mile south of Ealing, in Greater London. Anywhere in W5, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Our Greater London coverage takes in 764 places, from busy centres to rural villages. London is covered too, around 9 miles from Northfields.
Work on facade joints is covered throughout W5, W13 and TW8. Among the streets we cover are Burns Road, South Road and Elers Road. You’ll find Northfields on or near the A3002. Sites close to Northfields are covered too, including Brentford (1 mile south-east), Gillette Corner (1 mile south-west), Brentford End (1 mile south), Osterley (2 miles south-west) and Spring Grove (2 miles south-west). A short drive away, we cover London (9 miles east), City of Westminster (7 miles east), Marylebone (7 miles east), Kensington (5 miles east), St Pancras (9 miles east) and Shoreditch (10 miles east).
Landmarks near Northfields
In Northfields, that means premises near Ealing Fields High School, Great Ealing School and Ealing Park Tavern. Nearby too are Library for Iranian Studies (1.8 miles east) and Lammas Park (less than half a mile north). Northfields’s nearest station is Brentford station, about 0.8 miles south of the centre. Well-known places in the area include Gunnersbury Park House - Large Mansion (1.2 miles east) and Treaty Centre (3 miles south-west). Not far away are Middle Lake and Long Wood.
What sets the cost
To price the job, we consider:
- Removal of failed or old sealant
- Travel to remote or island sites
- How accessible the joints are
- The site’s rules and procedures
Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.
Details that help us quote
To price the job accurately, we need a clear picture of the site. Useful things to include:
- Your programme or deadline
- Drawings or a marked-up plan, if available
- The product your specification calls for
- Whether the building will be occupied during the work
Specifications, drawings and tender packages are welcome with any enquiry, and we will price against exactly what is specified. For smaller jobs, photos and a description will do.
When something else is needed
Being straight saves everyone time. New sealant won’t cure:
- Water getting in through cracked render or porous masonry
- Render or concrete edges that have broken away
- Movement beyond what any sealant can handle
Not sure which it is? You can call 01277 525 020 or send details through our quote form and we’ll tell you honestly.
Surfaces we seal
- Shopfront frames
- Cladding panel joints
- Perimeter joints where frames meet the structure
- Window and door perimeters
- Stone and brick facade joints
- Coping and flashing joints