The Mastic Doctor team standing beside their branded vans outside an office building
Greater London · England

Woolwich mastic sealing

Work needed on a mastic joint in Woolwich? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Draught complaints from residents or tenants
  • Window mastic that has split and shrunk
  • Movement joints with sealant missing
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
Constructionline member
£5m PL insurance

Mastic sealing for businesses in Woolwich

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Commercial clients in Woolwich

Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.

Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, with each stage agreed with your site contact.

Mastic sealing for commercial buildings in Woolwich

On a residential block, the work happens around people’s lives. Dates, areas and the order of work are agreed with you in advance so you can let residents know what is happening. Communal entrances and stairs stay usable while we work. We work on communal entrances and stairwells, communal kitchens and washrooms and window and door perimeters on blocks, and the usual reasons a site gets in touch are worn sealant at communal door frames and failed external movement joints. A specialist sealant contractor works differently from a general builder: in Woolwich, that means joint design, primers and backing rod as standard.

For managing agents in Woolwich, resident access, notice periods and the building’s rules shape the job. Work is planned with the agent so residents get notice and access is arranged in advance.

A 12-month guarantee applies to all our work in Greater London. If an installation problem shows up, phone 01277 525 020 or email a schedule or drawings and we’ll arrange a return visit.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
Woolwich (SE18, E16, SE7)
Region
Greater London
Guarantee
12 months on our workmanship
Quote
A fixed quote before we start
Telephone
01277 525 020
Last updated
3 November 2026

Looking after buildings in and around Woolwich

Blocks in London are normally run by managing agents, landlords or housing associations, with residents to notify and access to arrange. We work to your notice and access plan. Three care or nursing homes sit less than 2 miles from Woolwich. Owners of care premises can bring window and door mastic into a phased programme planned around the home.

For agents with blocks near Woolwich Dockyard station, which lies west of Woolwich, a block-wide mastic programme deals with frames, balconies and entrances in one go. Historic properties like Queen's House, 2.9 miles to the west of Woolwich, show the age of some local stock, where frame mastic must suit soft brick or stone. Student accommodation around universities such as University of East London (1.3 miles north of Woolwich) is typically managed block by block, which suits a planned mastic programme.

Woolwich is about 6 miles south-east of Leyton, in Greater London. We cover Woolwich and the rest of Greater London, with the same fixed quotes and 12-month guarantee as everywhere else. Across Greater London, 764 places are covered, including Woolwich. Our London page has more on work in that area (7 miles or so).

If you need mastic sealing in SE18, E16 and SE7, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. If your site is on Market Street, Woolwich High Street and Beresford Square Market Place or close by, send details and we will quote for mastic joints. Nearby places we also cover include Plumstead (1 mile east), Charlton (1 mile west), New Charlton (1 mile west), Shooter's Hill (1 mile south) and Kidbrooke (2 miles south-west) for mastic joints. Further afield, our area takes in London (7 miles west), City of Westminster (9 miles west), Marylebone (9 miles west), Kensington (11 miles west), St Pancras (8 miles west) and Shoreditch (7 miles north-west).

Landmarks near Woolwich

Recent enquiries here include premises near Woolwich Common, Oasis Academy Silvertown and Oasis Academy Silvertown and the streets around them. There’s a railway station in Woolwich itself: Woolwich Dockyard station. Other landmarks nearby include Royal Artillery Museum (0.5 miles north-east) and British Hospital for Mothers and Babies (0.5 miles west). For a walk, there’s Gilbert's Pit.

Map of Woolwich © OpenStreetMap contributors

Our process

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. Planning a London job such as one in Woolwich starts with access. Send the building rules and access times with your enquiry.

  1. First comes a look at the joints and, for older buildings, the asbestos records.
  2. A fixed quote covers the joints, products and order of work.
  3. We strip out the old sealant.
  4. The joints are prepared and resealed with the right product.
  5. Buildings are completed in turn.

Getting the site ready

  • Have the specification and drawings to hand
  • Let us know about inductions and permits
  • Share your working hours and any access restrictions

Ask for a 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’ll fill any gaps with a visit.

Get a price

Read more

Why deal with it now?

Reacting to every complaint means sending someone out block by block. Planned resealing covers a whole building or estate in one go and is simpler to manage and budget. Access in London is hard enough to arrange once, so while access is arranged it pays to renew all failing joints, not just the worst.

Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.

Why clients in Woolwich choose us

  • RAL and finish matching where the product range allows
  • Colour options checked against the specified product
  • Constructionline member for supplier checks
  • Our applicators hold CSCS cards

Read how commercial sealant jobs are priced and our accreditations.

What sets the cost

A fixed quote reflects the actual work. It allows for:

  • Which sealant the job calls for
  • The total length or number of joints
  • The size and state of each joint
  • Site requirements such as inductions and permits

A quote for mastic joints depends on how many there are, their condition and the access, and any specification that applies. Ask us for a fixed quote.

What to include in your enquiry

Diagnosis starts before we arrive. Tell us:

  • Rough lengths or quantities, or drawings if you have them
  • Access details, including height
  • Photos of the joints, close up and from further back
  • The product your specification calls for

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, call 01277 525 020 or use the quote form.

Aftercare for building managers

Regular inspection catches problems early. Specifically:

  • Avoid piecemeal callouts where you can
  • Make mastic part of routine maintenance checks
  • Keep bins and bikes away from communal door frames
  • Start inspections with the most exposed faces

Add mastic joints to your cyclical inspections. Watch for splits, open gaps, hard or chalky surfaces and mastic pulling away and record where they are.

Water getting in round frames can damage plaster, decoration and the frames themselves. Resealing early keeps the job small.

Questions we’re asked in Woolwich

Do you work for managing agents with blocks near Woolwich Dockyard station?

Yes, and several blocks can go on one quote. Photos of each elevation help us quote accurately.

Can work in a care setting near Woolwich go ahead while residents are there?

Yes, with the manager deciding the order and timing of rooms. Tell us about any infection-control or safeguarding requirements and we’ll work to them.

Is asbestos a concern with old mastic?

Asbestos removal isn’t part of our work. If old sealant is suspected, work stops until it’s tested in line with the dutyholder’s asbestos management.

Does weather matter for sealant work?

It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Internal work is far less affected.

Is Woolwich in your area?

Yes. Woolwich is in our area and the rest of Greater London, within our coverage of Greater London, South East England and Scotland. For a quote, speak to us on 01277 525 020 or email drawings and photos.

Is mastic sealing guaranteed?

Our workmanship carries a 12-month guarantee and we hold public liability insurance.

How long does a job like this take?

We plan the time on site around your programme and access. We’ll give you an estimate of time on site when we quote.

Surface by surface

Planned maintenance

We can work into your cyclical maintenance plan on a timetable you set.

External movement joints

External movement joints take up expansion and contraction. Once that sealant goes, rain can reach the wall.

Accreditations

Trusted. Accredited. Insured.