Mastic contractors in Broom Hill
Construction mastic in Broom Hill, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- Perimeter gaps outside the sealant’s range
- Mastic snags holding up handover
- Frame perimeters left unsealed or poorly sealed
Need construction mastic in Broom Hill?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Why it’s worth doing now in Broom Hill
Clearing snags piecemeal is tempting when handover is close. A planned sweep of each plot or floor catches the lot in one go, and avoids repeated visits. Snagging can be priced as a separate stage. In a London building, a failed joint rarely affects only one party. Dealing with it early is simpler for everyone.
The specified product makes a difference, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.
What you get with us
- One contact handling all your sites
- Work to your specification and the manufacturer’s guidance
- Standard and matched colours in many product ranges
- Constructionline member
Read what affects the cost and our accreditations and insurance.
Construction mastic for commercial buildings in Broom Hill
Mastic Doctor has been a subcontractor on construction projects for over 20 years. Quantities come off the drawings, the sequence is agreed with the site manager and the work follows the trades. For construction mastic on a scheme in Broom Hill, send drawings through our quote form, or phone or email us to talk it through. We work on cladding and panel joints, floor and skirting junctions and internal decorators’ caulk, and the usual reasons a site gets in touch are mastic snags holding up handover and inconsistent sealant finishes from plot to plot. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Broom Hill is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Around Broom Hill, 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, so tidy, well-planned work matters.
A 12-month guarantee applies to all our work. Should something we installed fail, speak to us on 01277 525 020 or email us and we’ll come back to it.
- Place
- Broom Hill (BR6, BR5)
- Region
- Greater London
- Cover
- 12 months on our workmanship
- Quotes
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Questions we’re asked in Broom Hill
Can you take on a job at a hospital such as Orpington Hospital?
Yes, healthcare and care buildings are part of our work. Work is phased so departments keep running, under the site’s own rules.
Will you plan work around the academic year at somewhere like University of Greenwich Avery Hill Campus?
Yes. Education sites normally want the work in vacations or in phases during term, and we plan to suit. We are CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
What’s the quickest route to a quote?
It works in four steps: send details, get a quote, we seal, guaranteed. The first step only needs photographs and a postcode.
What do you charge?
It depends on the job: the volume of work, the access, the specified product and how it’s phased. Call for a quote.
Do you do internal caulk as well as external mastic?
It depends on the specification, but most packages include frame perimeters, sanitary and kitchen joints, caulking where specified and a snagging pass.
Can you handle several sites?
Yes. Multi-site work and planned programmes are a core part of the service, planned site by site to suit how each building is used.
Do you cover Broom Hill?
Yes. We cover Broom Hill, and you can phone 01277 525 020 or email drawings and photos to get started.
Different surfaces, different methods
Kitchens and utility areas
Kitchen joints are sealed after fitting and before final clean. The sealant is a kitchen-grade product and hygienic or food-safe grades wherever food contact is possible.
Snagging before handover
Snags usually come from damage by following trades, missed joints or poor earlier work. We price snagging as part of the package or as a separate visit, depending on what suits the programme.
Also near Broom Hill
More services for Broom Hill
Our process
A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work usually takes whatever the programme allows, since the work follows the trades as areas are released, and our waste is bagged and taken away as we go. 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.
- First we look at the scope on site or from drawings.
- A fixed quote sets out scope, products and phasing.
- Paperwork is agreed and applicators are inducted on site.
- Sealing follows the programme as areas are released.
- Problems we find, such as oversized gaps, are raised straight away.
- Final snagging is completed and the 12-month guarantee applies.
Before we start on site
- For older buildings, check the asbestos register before work
- Make sure the joints can be reached
- Point out any areas we must not close
Getting a fixed quote
A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we will fill any gaps with a visit.
Related advice
What we’re called out for in Broom Hill
A joint without backing rod or bond-breaker often fails early. Bonded to the base of the joint and both sides, sealant can’t stretch evenly so we set the depth properly before sealing.
These are often picked up first by site or facilities staff:
- Perimeter gaps outside the sealant’s range
- Missed perimeter joints on a new elevation
- Old sealant on a refurbishment that needs stripping before new work
- Early adhesion failures on new external joints
When a college such as Bromley College, 2.8 miles west of Broom Hill, builds or refurbishes, the mastic package normally has to fit around students and staff.
Questions to ask before you book
- Health and safety accreditation such as CHAS
- Who will actually carry out the work
- Is the sealant right for the movement and the substrate?
- How long is the guarantee, and what does it include?
Construction mastic in Broom Hill: the local picture
A number of hotels sit less than 2 miles from Broom Hill. Hotel schemes tend to have fixed reopening dates, so the mastic is programmed tightly with the other trades. Site traffic in Broom Hill falls within London’s ULEZ, like everywhere else in Greater London. London sites also mean booked deliveries and limited storage, which the mastic programme has to allow for.
Hotel extensions and refits, at places such as TLK Apartments & Hotel, which lies north-east of Broom Hill, normally run between busy periods, so the sealing is squeezed into short windows. Extensions at sites like Orpington Hospital (1.2 miles south of Broom Hill) normally sit beside working departments, and the mastic follows strict access rules.
Broom Hill is about 1 mile south-west of Orpington, in Greater London. Our applicators travel to Broom Hill for work on mastic packages, handled exactly as we handle every other area. Our Greater London coverage takes in 764 places, from busy centres to rural villages. For work in that direction, see our London page, about 12 miles away.
We cover the BR6 and BR5 postcode districts. Buildings on New Road, Irene Road and Sandy Lane are within our area for mastic packages. If your building is just outside Broom Hill, we cover Crofton (1 mile south-west), Petts Wood (1 mile north-west), Locksbottom (2 miles west), Farnborough (2 miles south-west) and Green Street Green (2 miles south). Bigger towns within reach include London (12 miles north-west), City of Westminster (14 miles north-west), Marylebone (14 miles north-west), Kensington (15 miles north-west), St Pancras (14 miles north-west) and Shoreditch (13 miles north-west).
What’s near Broom Hill
We work on buildings around Jubilee Country Park, The Cricketers pub and The Priory School and the streets around them. The nearest railway station is Orpington station, roughly 0.6 miles south-west. A little further out are The Mall (3.8 miles north-west) and Orpington Hospital (1.3 miles south). The countryside around Broom Hill includes Summer Hill and The Warren.
Maintenance after handover
Your facilities or cleaning team can help the joints last. Pass these on to them:
- Brief the final clean team to avoid blades near sealant
- Note which sealant went where at handover
- Stick to the specified sealant rather than a generic substitute
- Allow flexibility for external sealing in damp or cold weather
Our 12-month guarantee covers the workmanship from sign-off. Damage by others isn’t a workmanship fault.
Oversized gaps are a problem better caught early. Sealant stretched over an oversized gap won’t last, so the installer needs to correct it first. We flag them as soon as we see them.
When to bring in a specialist
There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we’ll confirm the paperwork you need with the quote.
Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.