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

Edmonton mastic sealing

We carry out mastic sealing for building owners, managing agents and housing associations in Edmonton. Send details for a fixed quote.

  • Old repairs sealed over failed mastic
  • Occupiers reporting cold air round windows
  • Water getting in round frames after rain
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS accredited
Fully insured: £5m PL

Need mastic sealing in Edmonton?

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

About our mastic sealing in Edmonton

There isn’t one mastic for every joint on a building. Window perimeters and external joints often take a low-modulus neutral-cure silicone, and MS polymer sealants stick well to many substrates and often take paint, and colours are confirmed for whichever product is used. If you have draught complaints from residents or tenants and a mix of products and colours from past repairs, we can help, whatever the surface. Looking for mastic applicators who cover Edmonton? We’ve been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.

London’s ULEZ covers every borough, and parking and loading rules vary street by street. For a block or estate, it helps to know where we can park and stage materials.

A 12-month guarantee applies to all our work. Should something we installed fail, call the office on 01277 525 020 or use the quote form and we will come back to it.

Location
Edmonton (N9, N18, N13, EN1)
Wider area
Greater London
Cover
12 months on every job
Quote
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Different surfaces, different methods

Tenement and older buildings

Some old mastics in pre-2000 buildings contain asbestos and the register is checked before anything is disturbed. If it’s suspected, work stops until it’s tested.

Planned maintenance

Planned resealing replaces emergency callouts and keeps budgets predictable.

Leave it or put it right?

Resealing ahead of leaks keeps it to a maintenance task. Once water has tracked in, the repair list grows and occupiers notice. In a London building, a failed joint rarely affects only one party: water travels through shared structures, and a small leak becomes a dispute between occupiers. Putting it right early is less disruptive than dealing with the consequences.

What a job costs comes down to how many linear metres there are, what has to come out first and the access. Call for a quote when you’re ready.

Why us?

  • Constructionline member
  • Public liability insurance in place
  • RAL and finish matching where the product range allows
  • Failed material removed, not covered up

See our cost guide and our accreditations and insurance.

From enquiry to sign-off

We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. With the paperwork done, we take the joints in the sequence agreed with you. All of Greater London is in the ULEZ, and kerbside space in Edmonton can be scarce. If there’s a loading bay, a car park or a permit we can use, tell us when you send details.

  1. Each block or building is walked and the failed joints recorded with the likely cause.
  2. You get a fixed quote, priced per building where that helps your budgeting.
  3. The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
  4. Failed mastic is removed and the faces taken back to sound, dry material.
  5. Backing rod and primer go in where the joint and the product need them, then new sealant is applied and tooled.
  6. Finished joints are looked over and the 12-month guarantee confirmed.

Preparing the site

  • Send asbestos survey details if the building is pre-2000
  • Tell us your opening times and when work is allowed
  • Tell us what induction or permit system the site runs

Quotes

A handful of photos 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 use the quote form to discuss it first.

Ask for a quote

Advice

FAQs: Edmonton

Do you work in London buildings with loading restrictions?

Yes, we plan every London job around the building’s own access rules. The building manager’s rules go straight into our method.

Does your area include sites such as Edmonton Green Shopping Centre, near Edmonton?

Yes. Estates, retail parks and business parks around Edmonton, Edmonton Green Shopping Centre among them, are all within reach. A few photos and the unit address let us price the work.

How many days will you need on site?

The duration is planned around your programme and the access we are given. We’ll give you an estimate of time on site when we quote.

Will you just go over the old sealant?

No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.

How much does the work cost?

Every job gets its own fixed quote. To get one, phone 01277 525 020 or send details through our quote form with a description of the work.

Does the weather affect the work?

Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.

How do we ask for a quote?

The quote form is the simplest route, though you can also give us a call on 01277 525 020 or send details through our quote form. Include photos or drawings if you have them.

Building owners, agents and FMs in Edmonton

When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.

Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, with each stage agreed with your site contact.

Blocks and managed buildings in Edmonton

There are five care or nursing homes within about 2 miles of Edmonton. For owners and operators of care buildings, window perimeters and external joints are best renewed in planned phases around residents. For a London block, the agent or landlord typically handles notices to residents and access to flats. We fit the programme to your notice periods.

Property owners at sites such as Edmonton Green Shopping Centre (less than half a mile north-east of Edmonton) can have mastic renewed between lettings. Site managers at schools like Brettenham Primary School can fit frame mastic into the summer works.

Edmonton is about 9 miles north-east of City of Westminster, in Greater London. Across the N9 postcode area, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Edmonton is one of 764 places in Greater London on our list. There’s a separate page for London, roughly 9 miles from Edmonton.

We cover the N9, N18, N13 and EN1 postcode districts for mastic joints. If your site is on The Broadway, Plevna Road and Galahad Road or close by, we can quote for mastic joints. Main routes into Edmonton include the B137 and B154, useful when we plan access and materials. Sites close to Edmonton are covered too, including Upper Edmonton (1 mile south), Picketts Lock (1 mile east), Northumberland Park (1 mile south), Ponders End (1 mile north-east) and Bush Hill Park (1 mile north-west). Nearby towns on our patch include London (9 miles south), City of Westminster (9 miles south-west), Marylebone (8 miles south-west), Kensington (10 miles south-west), St Pancras (7 miles south) and Shoreditch (7 miles south).

Around Edmonton

We work on buildings around NiW Furniture pub, The Latymer School and Starks Field School. Edmonton has its own railway station: Edmonton Green station. Well-known places in the area include Edmonton Green Shopping Centre (less than half a mile north-east) and North Middlesex University Hospital (1 mile south-west). Green spaces nearby include Highams Park Lake and Ainslie Wood.

Map of Edmonton © OpenStreetMap contributors

Do you need mastic sealing in Edmonton?

Many failed joints were sealed without backing rod, so the mastic is glued to the joint bottom too. It can’t stretch properly and splits as the building moves.

These are often picked up first by site or facilities staff:

  • Draught complaints from residents or tenants
  • Damp patches beside frames
  • Mastic failing across several blocks on an estate
  • No planned programme for sealant

Blocks of flats and mixed-use buildings often cluster around stations such as Edmonton Green station (under half a mile north-west of Edmonton) and their window and balcony mastic tends to age at the same rate across a building.

What your quote should include

  • Which product they’ll use, and why it suits the joint
  • Are they CHAS accredited or on Constructionline?
  • Will RAMS and insurance details be available?
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?

Choosing a commercial sealant contractor

What affects the price in Edmonton

Quotes vary with the job. It mainly depends on:

  • Site requirements such as inductions and permits
  • Removal of failed or old sealant
  • Quantities, in metres or numbers
  • Distance, for remote addresses

The product called for affects the cost, and so does the preparation. Access, phasing and site rules also count.

Before you send an enquiry

However big the job, these details speed things up:

  • Whether the building will be occupied during the work
  • Your programme or deadline
  • Anything awkward about access or site hours
  • Approximate linear metres or a joint schedule

Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. To get it moving, speak to us on 01277 525 020 or email the details over.

Accreditations

Trusted. Accredited. Insured.