Greater London · England
Commercial sealant contractors in DA7
Commercial sealant, construction mastic and joint sealing across DA7, covering Bexleyheath, Crook Log and West Heath, with a fixed quote before we start.
Mastic and sealant across DA7
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Places in DA7
- Bexleyheath
- Crook Log
- West Heath
- Barnehurst
- Erith
- Northumberland Heath
- Lessness Heath
- Bexley Riverside
- Crayford
- Upton
- North End
- Slade Green
Our services across DA7
- Construction and new-build mastic
- Expansion and movement joint sealing
- Commercial sealant contractors
- Fire-rated sealing and fire stopping
- Industrial and floor joint sealing
- Facade and window perimeter sealing
- Coloured and colour-matched sealant
- Mastic sealing for building owners and managing agents
- Commercial washroom and wet-area sealing
- Every service
Let us know the job and your postcode for a fixed quote: give us a call on 01277 525 020 or email drawings and photos.
Our commercial sealant contractors service in DA7
On older buildings, particularly those put up before 2000, some old mastics and sealants may contain asbestos. We ask to see the asbestos register or survey before old sealant is disturbed. If a material is suspected, work stops until it’s tested. We work on kitchen worktops and splashbacks, washrooms and tea points and floor and threshold joints, and the failures we are asked to look at most are damp patches where an external joint has failed and gaps behind commercial kitchen worktops and sinks.
Working in a building that stays open takes some planning. We sign and contain the area we are in, with routes through the building left open and work section by section so the rest of the building stays in use.
- You send photos, drawings or a list of the joints and areas involved, or we arrange a site visit.
- We work out why the joints have failed and fix a quote for the agreed scope.
- Before anything is cut out, we agree access, timings and sequence.
- The failed bead is removed and the joint faces cleaned until they’re sound and dry.
- The depth is set, primer is used where the maker calls for it, and the fresh bead is applied and tooled.
- Each area is inspected, signed off and backed by our 12-month guarantee.
How we quote
Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we’ll put a fixed figure on it.
Why choose Mastic Doctor
- Public liability insurance in place
- Workmanship guaranteed for 12 months
- Clear, fixed quotes
- RAL and finish matching where the product range allows
Request a quote
A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or speak to us on 01277 525 020 or send details through our quote form to discuss it first.
Near you in Bexleyheath
In Bexleyheath, that means premises near Trinity Baptist Church, St Catherine's Catholic School and Upland Primary School, among other places. Other local landmarks include Danson Park (0.9 miles west), Bexleyheath Academy (less than half a mile east) and The Volunteer pub (under half a mile north). There’s a railway station in Bexleyheath itself: Bexleyheath station. Other landmarks nearby include Bexley Hospital (under half a mile west) and Bexley Museum (1.2 miles south-east). Not far away are Summer Hill and Wansunt Pit.
Where commercial joints are in DA7
In DA7, much commercial sealant work follows refits in shops, offices and hotels in places such as Erith, Northumberland Heath and Lessness Heath. Where the joint is on show, a colour that suits the finish is part of the job.
Around the motorway corridors of the South East, business parks and industrial estates are common, and we cover DA7 along with the rest of the region.
Bexleyheath: In a retail centre such as Broadway Shopping Centre, less than half a mile south-east of Bexleyheath, new tenants mean new shop fits, and the sealant at counters, frontages and floor edges is part of the finish. If you run an office at a site such as Old Bexley Business Park, which lies south-east of Bexleyheath, the sealant at reception desks, tea points and frames ages with each fit-out.
Different surfaces, different methods
Facade and cladding joints
On a facade, a failed joint is often only visible close up. Close-up photos or a site visit tell us what’s needed, and we will confirm the colours available for the specified product.
Commercial kitchens and tea points
Kitchen joints along worktops, sinks, splashbacks and wall cladding collect grease and moisture. Proper degreasing comes before any new sealant, with a food-safe or hygienic product wherever food contact can happen.
Maintenance after handover
Keep the joints in good shape with a few simple steps:
- Keep a record of which joints were resealed and when
- Make sure ventilation in wet areas is switched on and working
- Keep abrasive pads and scrapers off resealed joints
- Deal with small splits before they become leaks
Give fresh sealant time to cure before it’s cleaned, wetted or walked past. Cure time varies with the product, conditions and depth of the joint. Keeping signs or barriers up until then protects the finish.
Tenants and staff spot black or split sealant quickly, and in a hotel, office or shop it makes the whole space look neglected. Planned replacement saves fielding the same complaint again and again.
What affects the price in DA7
Your fixed quote is built from the real scope. It takes account of:
- Whether the work must be split into stages
- The product specified
- How much there is to seal
- The size and state of each joint
Access often affects the price as much as the sealing: 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.
What we need to price the job
There’s no need for a formal survey. A few details are enough to get going:
- A wide shot and a close-up of the area
- The site address and postcode
- Rough lengths or quantities, or drawings if you have them
- How the joints are reached, and at what height
Quotes are fixed against the scope you send, so the cost is agreed before work starts. To ask for one, ring 01277 525 020 or send details through our quote form.
When to bring in a specialist
Redoing a failed joint usually costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.
Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong typically costs more in the end than doing them right.
Why deal with it now?
On many buildings the mastic was done by whichever trade was on site. Choosing the product, setting the depth and preparing the faces are what a specialist brings. It shows over the following seasons rather than at handover.
What your quote should include
- Which product they’ll use, and why it suits the joint
- What the guarantee covers, and for how long
- Proof of insurance
- Their plan for phasing and protecting the area
Common questions from DA7 clients
How is commercial sealant work priced?
The main factors are metres of joint, removal, access, the product and how many phases there are. To get a fixed price, send details through our quote form, or phone or email us.
What about asbestos in old mastic?
It’s possible in older buildings, especially those built before 2000. We ask to see the asbestos register or survey before disturbing old sealant, and anything suspect is left until it has been tested.
Do your applicators hold CSCS cards?
Yes. Should the site need card details in advance, tell us and we’ll confirm them with the quote.
What site paperwork can you provide?
Let us know your requirements when you ask for a price. For older buildings we will ask for the asbestos register, plus your site induction rules.
Are you CHAS accredited and on Constructionline?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.
Is DA7 in your area?
Yes. We cover DA7 and the rest of Greater London. For a quote, call 01277 525 020 or use the quote form.
How long before the joints can be used?
Curing time varies by product, and we confirm it on the day.