Sealant specialists in Broadfields Estate
Commercial sealant contractors in Broadfields Estate, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- External beads that have gone brittle and cracked
- Movement joints packed with grit and debris
- Window and door perimeter joints that have cracked open
Commercial sealant contractors for Broadfields Estate sites
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Commercial mastic work in Broadfields Estate
Having a single contact for all your sites makes sealant far simpler to manage. Single jobs, multi-site packages and planned programmes all come to us, run the same way on every site: details in, a fixed quote back, the sealing done, then our 12-month guarantee. For sites in Broadfields Estate, the quickest start is to ring 01277 525 020 or email us with a list of addresses. If you have greasy, split joints in a kitchen or tea point and frame mastic that has hardened and come away from the wall, we can help. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Broadfields Estate is the same: the right product in a properly prepared joint.
A lot of what we do in Broadfields Estate is replacing sealant that has done its years: split, chalky or peeling, with leaks or mould starting behind it.
In London, most commercial sealant work happens in buildings that stay open: offices with staff at their desks, shops trading below flats and receptions that can’t be roped off for long. We plan the joints floor by floor or unit by unit with the building manager, so areas stay in use, and where a brand finish matters, the sealant colour is agreed first.
Our workmanship is guaranteed for 12 months. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Place
- Broadfields Estate (HA8, NW7)
- Wider area
- Greater London
- Cover
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Updated
- 3 November 2026
Looking after the joints
Your facilities or cleaning team can help the joints last. Share these points with them:
- Keep washroom and kitchen extraction working
- Keep a record of which joints were resealed and when
- On pre-2000 buildings, share the asbestos information before work starts
- Brief cleaning contractors to avoid scourers and blades on sealant
Add the resealed joints to your planned maintenance inspections. Regular checks pick up small failures before they become leaks, with external elevations and wet areas first in line. If anything looks wrong, speak to us on 01277 525 020 or email drawings and photos with a photo.
Each spell of wet weather pushes more water through an open joint. Behind a panel or frame, that water can sit unseen for a long time. Resealing early keeps the problem in the sealant and out of the building.
What happens if it’s left?
A failed seal around a window, worktop or panel doesn’t mean the element itself has to go. In many cases the element is fine and only the seal around it has given up. Resealing typically costs far less than renewal. Failed sealant in a building in Broadfields Estate can quickly affect neighbours, tenants or the floor below: water travels through shared structures, and a small leak becomes a dispute between occupiers. Dealing with it early is simpler for everyone.
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.
Why choose Mastic Doctor in Broadfields Estate
- One contact handling all your sites
- Work carried out by CSCS-carded applicators
- Coloured sealants to suit the setting, where available
- Over 20 years of commercial sealing
Take a look at how commercial sealant jobs are priced and how we’re accredited.
On site: what to expect
Where the site stays busy, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed, then handed back before the next one starts. Most London premises stay occupied while we’re on site, so zones and timings are agreed with whoever manages the building. Areas are handed back as each section is finished.
- We start with the evidence: photographs, drawings or a look on site.
- A fixed quote follows, with removal and preparation included.
- Sequence, access and working times are settled before the first joint is touched.
- The failed sealant comes out and the faces are prepared, with primer where required.
- Depth is set with backing, then the sealant is applied, tooled and the area tidied.
- We hand back each area with its cure time and our 12-month guarantee.
Preparing the site
- Share your working hours and any access restrictions
- Flag any permit to work we’ll need
- Agree which areas must stay open
Get a fixed quote
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. The easiest way is to speak to us on 01277 525 020 or send details through our quote form.
Related advice
Common problems we fix in Broadfields Estate
Resealing over the top is a false economy we come across often. Fresh sealant won’t stick to the old bead underneath so it soon peels and traps moisture against the joint. Getting back to a clean joint then means removing every layer.
Typical triggers for a call:
- Messy, uneven beads from earlier work that let the building down
- Expansion joints with the sealant torn out
- Mouldy silicone around WCs, urinals and vanity tops
- External beads that have gone brittle and cracked
In a retail centre such as Broadwalk Centre, 1 mile south of Broadfields Estate, new tenants mean new shop fits, and the sealant at counters, frontages and floor edges is part of the finish.
What to look for in a quote
- Their public liability cover
- The named product and why it was chosen
- What site paperwork they can supply
- Will failed sealant be removed rather than covered?
Your questions answered
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. Send the building rules and access times with your enquiry. The ULEZ covers the whole of Greater London, which we allow for
Will our hotel in Broadfields Estate need to close for the work?
Rarely, if ever. We take a few rooms out at a time. Tell us your quiet periods and access windows and we will plan around them.
When can the area be used after sealing?
We’ll confirm how long the chosen product needs to cure, and sign any area that should be left alone.
Will you just go over the old sealant?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, since fresh sealant will not bond reliably to aged material.
Do you work to architects’ specifications?
Yes. Send it with your enquiry, and the quote will be based on it.
What site paperwork can you provide?
Send your site requirements with the enquiry, and we will confirm the RAMS, insurance and CSCS details with the quote. From you, we will need the asbestos information for older buildings and any site rules.
Is the old sealant taken out first?
Removal of the failed sealant is always part of the job. New sealant can’t grip the old bead, so laying over it never lasts.
Also near Broadfields Estate
What else we do in Broadfields Estate
How the quote is worked out
To price the job, we consider:
- Whether the work must be split into stages
- Whether old sealant has to be cut out first
- Distance, for remote addresses
- Which sealant the job calls for
Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.
Before you send an enquiry
Whether it’s one area or a whole building, the same details help:
- Specification clauses that apply
- When you need the work done
- Approximate linear metres or a joint schedule
- Where the site is, with the postcode
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. For smaller jobs, photographs and a description will do.
What Broadfields Estate’s businesses ask us to seal
A 2-mile radius around Broadfields Estate takes in a number of hotels. Hotel refurbishments are where a matched sealant colour earns its place: bathroom, bar and reception joints have to sit with the finishes, with rooms done in turn while the rest stay let. There are three care or nursing homes within about 2 miles of Broadfields Estate. Care homes need tidy, cleanable joints in kitchens, corridors and communal rooms.
Sites a few miles apart, such as Mill Yard Industrial Estate and Mill Hill Industrial Estate, can share one programme and one point of contact. Shops and cafés around stations like Mill Hill Broadway station, 1.4 miles to the south-east of Broadfields Estate, trade from early, so work is timed around them.
Broadfields Estate is about 1 mile north of Edgware, in Greater London. Anywhere in HA8, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Broadfields Estate is one of 764 places we cover in Greater London for sealant joints. There’s a separate page for London, roughly 12 miles from Broadfields Estate.
Work on sealant joints is covered throughout HA8 and NW7, whatever the building. For a building on Clay Lane, Mowbray Road and Cranmer Road or nearby, send details and we will quote for sealant joints. Just outside Broadfields Estate, we also work in Edgware (1 mile south), Edgware Bury (1 mile north-west), The Hale (1 mile south-east), Deacon's Hill (1 mile north) and Burnt Oak (1 mile south-east). Nearby towns on our patch include London (12 miles south-east), City of Westminster (9 miles south-east), Marylebone (9 miles south-east), Kensington (9 miles south), St Pancras (10 miles south-east) and Shoreditch (11 miles south-east).
Local landmarks in Broadfields Estate
Around Broadfields Estate, our work takes us to commercial buildings near Edgwarebury Park, The Northgate School and London Academy and the streets around them. The nearest railway station is Mill Hill Broadway station, about 1.4 miles south-east. Other landmarks nearby include Royal National Orthopaedic Hospital (1.4 miles west) and Elstree and Borehamwood Museum (2 miles north). Open spaces near Broadfields Estate include Darland's Lake and Edgware Way Grassland.
What sealant work can’t fix
Part of a good diagnosis is knowing where sealant stops. We will tell you if the real problem is one of these:
- Leaking roofs, gutters or flat-roof membranes (those need a roofer)
- Faulty windows rather than failed perimeter sealant
- Leaks from pipework, wastes or valves (that’s plumbing)
If in doubt, ring 01277 525 020 or email us and we will say what we think before you book.
Surfaces we seal
- External facade joints
- Movement joints in walls and floors
- Window and door perimeters
- Kitchen worktops and splashbacks
- Washrooms and tea points
- Floor and threshold joints