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

Mastic sealant contractors in Woodside Green

Looking for mastic sealing in Woodside Green? It’s simple: send details, get a quote, we seal, guaranteed.

  • Complaints coming in block by block
  • Window mastic that has split and shrunk
  • Occupiers reporting cold air round windows
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
Constructionline member
£5m PL insurance

Mastic sealing near Woodside Green

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Mastic sealing in Woodside Green, done properly

We work for building owners, landlords with commercial or block portfolios, managing agents and housing associations. Many prefer a planned programme to one-off visits and we quote and schedule each building in turn. The enquiries we see most involve damp patches beside frames and patchy repairs in mismatched sealant, on shopfronts below residential blocks, communal kitchens and washrooms and balcony and threshold joints. A single leaking joint is often how a building in Woodside Green first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.

For buildings around smaller places like Woodside Green, we group work so one trip covers it. Photos of each elevation help us quote accurately.

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.

Where
Woodside Green (ME17)
Region
Kent
Guarantee
A 12-month guarantee
Quote
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Questions about Woodside Green

Is Woodside Green off your patch?

No. Small places get the same service as large ones. We work across Greater London and the South East. Where we can, we group nearby jobs to make the most of each trip.

Can you work at a site such as Roebuck Business Park, by Woodside Green?

Yes. Our area takes in Woodside Green and its surroundings, with estates and business parks such as Roebuck Business Park included. Send details of the unit and the work through our quote form for a quick quote.

Can you send RAMS and CSCS details before starting?

We’re CHAS accredited, a Constructionline member and carry public liability insurance. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.

How long before the joints can be used?

We’ll confirm how long the chosen product needs to cure, and sign any area that should be left alone.

Can you quote from photographs?

Many jobs can be quoted from photos, drawings or a joint schedule. Where they aren’t, we arrange a site visit.

Do you seal on top of existing sealant?

No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.

What guarantee do you give on resealing?

Our workmanship carries a 12-month guarantee, backed by public liability insurance.

What happens if it’s left?

Open external joints let water into walls and around frames. That can lead to damp, staining and damage to finishes, which is harder to deal with than resealing. Older rural buildings around Woodside Green move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.

Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

What you get with us

  • A range of standard colours, depending on the product
  • Failed material removed, not covered up
  • One contact handling all your sites
  • Public liability insurance in place

Read what affects the cost or how we’re accredited.

Looking after the joints

Once the work is signed off, a little attention goes a long way:

  • Check the asbestos register before any old mastic is disturbed
  • Log resealing dates block by block
  • Ask residents or tenants to report leaks and draughts early
  • List the paperwork your organisation requires when you send details

Log the date and extent of the resealing for each block. That makes future programmes easier to plan and shows what was done.

Failed mastic often goes unnoticed until heavy rain finds it. Resealing when cracking first shows avoids water damage and the complaints that come with it.

Diagnose, treat, sign off

We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. If others near Woodside Green need work, visits can be combined, which keeps travel down. A fixed quote is given before anything starts.

  1. A building-by-building inspection lists the failed joints.
  2. You get a fixed quote, per block or for the whole programme.
  3. Dates and areas are agreed so occupiers can be told.
  4. Failed sealant is removed and the faces prepared.
  5. New sealant goes in with backing rod and primer where needed.
  6. Each building is checked and signed off with the 12-month guarantee.

Getting the site ready

  • Tell staff and tenants when we will be in
  • Explain the parking and delivery arrangements
  • Flag any permit to work we will need

Getting a fixed quote

Need a figure for a tender or a budget? We will quote against your scope and drawings you can plan around. If you have questions first, call the office on 01277 525 020 or email a schedule or drawings.

Get a quick quote

Read more

Surface by surface

Commercial and mixed-use buildings

Landlords with commercial portfolios have shopfronts, office entrances and external joints to look after. A planned programme suits multi-building portfolios.

Tenement and older buildings

Some old mastics in pre-2000 buildings contain asbestos, so we check the asbestos register or survey first. Suspect material is tested before work continues.

Work for main contractors and building owners

Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Woodside Green can form part of a wider programme across Kent.

For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. Programme, specification and site rules come first.

Planned mastic for Woodside Green portfolios

Central London is about 39 miles from Woodside Green. Managed blocks of flats are a big part of commuter-belt property, and window and balcony mastic on them tends to age at the same rate. The South East is one of the drier parts of the UK. Even so, frame mastic only goes on in dry, workable conditions, and elevations facing the sun and the prevailing weather are normally where frame mastic ages first.

If you manage student housing near a university such as Canterbury Christ Church University, 2.4 miles north-west of Woodside Green, the summer turnaround is the time for mastic. Site managers at schools like The Lenham School can fit frame mastic into the summer works. Landlords with units on estates such as Roebuck Business Park, 2.5 miles west of Woodside Green, can bring frame, door and external mastic across several units into one programme.

Woodside Green is about 6 miles south of Sittingbourne, in Kent. Woodside Green sits inside our coverage, with the same fixed quotes and 12-month guarantee as everywhere else. Woodside Green is one of 931 places we cover in Kent. London is covered too, some 39 miles away.

Anyone looking for mastic sealing in ME17 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Just outside Woodside Green, we also work in West Street (1 mile north-west), Payden Street (1 mile east), Lenham (1 mile south-west), Warren Street (1 mile east) and Leadingcross Green (2 miles south-west). Bigger towns within reach include Maidstone (9 miles west), Ashford (10 miles south-east), Canterbury (15 miles east), Sittingbourne (6 miles north), Whitstable (15 miles north-east) and Faversham (8 miles north-east).

Around Woodside Green

In Woodside Green, that means premises near Kiln Wood. The nearest railway station is Lenham station, roughly 1.5 miles south-west. Nearby you will also find Coldbridge Castle (3.9 miles south).

Map of Woodside Green © OpenStreetMap contributors

When something else is needed

Our job is the joint, not everything around it. Sealant alone won’t deal with:

  • Masonry that has broken away beside the joint
  • Water coming in from the roof or rainwater goods
  • Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first

If in doubt, give us a call on 01277 525 020 or email us and we’ll say what we think.

Joints and surfaces we work on

  • Communal entrances and stairwells
  • Communal kitchens and washrooms
  • Shopfronts below residential blocks
  • External wall and movement joints
  • Balcony and threshold joints
  • Window and door perimeters on blocks
Accreditations

Trusted. Accredited. Insured.