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

Mastic sealant contractors in Plastow Green

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

  • Open joints in brickwork or panels
  • Patchy repairs in mismatched sealant
  • The same joint failures repeated across a portfolio
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS accredited
£5m PL insurance

Mastic sealing in Plastow Green

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

Mastic sealing in Plastow Green, done properly

Treatment starts with a proper look: which joints have failed, why, and whether sealant is the right answer. Old mastic is removed entirely, the faces prepared, primer used where the maker specifies it and new sealant tooled in and backing rod used wherever a joint is deep. We work on balcony and threshold joints, window and door perimeters on blocks and communal entrances and stairwells, and the usual reasons a site gets in touch are a mix of products and colours from past repairs and the same joint failures repeated across a portfolio. Most enquiries from Plastow Green start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.

Around smaller places like Plastow Green, older walls fitted with newer windows are a familiar sight. Perimeter mastic there has to grip an uneven face and suit the building’s character.

Every job is signed off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
Plastow Green (RG19)
Region
Hampshire
Guarantee
A 12-month guarantee
Quote
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026

From enquiry to sign-off

The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. For a building around Plastow Green, tell us how to find it and who will meet us. Add it to your enquiry and we will build it into the plan.

  1. We check the asbestos register for older buildings and look at the joints.
  2. The products and programme are set out in a fixed quote.
  3. We strip out the old sealant.
  4. The joints are prepared and resealed with the right product.
  5. We finish each building before moving to the next.

Getting the site ready

  • Clear stock, furniture or equipment away from the joints
  • Arrange parking or a loading space
  • Send asbestos survey details if the building is pre-2000

Quotes

To get a fixed quote, call 01277 525 020 or email a schedule or drawings with the site address and an outline of the work. You can also send details through our quote form.

Get a quick quote

Read more

Honest limits

We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:

  • Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
  • Failed window or door frames, which need a window contractor
  • Misted or failed double-glazed units

Not sure which it is? You can call 01277 525 020 or email drawings and photos and we will tell you honestly before you book.

Where we work in Plastow Green

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

Maintenance after handover

Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. Our advice:

  • Avoid piecemeal callouts where you can
  • Share the asbestos register when you send details
  • Include mastic in your cyclical inspections
  • Track which buildings were done and when

Log the date and extent of the resealing for each block. That makes future programmes easier to plan and gives you a history.

Planned resealing is easier to budget than emergency repairs. We can quote buildings in priority order and work down the list.

Leave it or put it right?

Reacting to every complaint means sending someone out block by block. A planned programme treats each building once and is simpler to manage and budget. Converted and older buildings near places like Plastow Green tend to move, and aged sealant cracks. The right product, sized to the joint, copes much better.

Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well.

Why choose Mastic Doctor in Plastow Green

  • RAL and finish matching where the product range allows
  • Standard and matched colours in many product ranges
  • One contact handling all your sites
  • Health and safety: CHAS accredited

Read what affects the cost or our accreditations and insurance.

Site staff or a sealant specialist?

For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

Certain joints really need a specialist: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.

When to call us in Plastow Green

Many failed joints were sealed without backing rod, so the mastic is glued to the joint bottom too. That three-sided adhesion stops it stretching and splits as the building moves.

Clients normally get in touch after noticing one or more of the following:

  • Window mastic that has split and shrunk
  • Estate-wide sealant that is simply worn out
  • Communal area joints that look neglected
  • Movement joints with sealant missing

For agents with blocks near Thatcham station (2.9 miles north of Plastow Green), a block-wide mastic programme deals with frames, balconies and entrances in one go.

What to look for in a quote

  • The named product and why it was chosen
  • Whether their applicators hold CSCS cards
  • The terms of the workmanship guarantee
  • Proof of insurance

Questions to ask before you appoint anyone

Questions about Plastow Green

Is Plastow Green off your patch?

Not at all: smaller places are covered as well as towns. London and every South East county are within our area. Where we can, we group nearby jobs to make the most of each trip.

Will you take on work at estates like Scion Business Park, close to Plastow Green?

Yes. We cover Plastow Green and the area around it, including industrial estates, business parks and retail parks such as Scion Business Park. To start, just ring 01277 525 020 or send photos by email with the unit, the joints involved and your access times.

Do you need to see the site first?

That depends on the size and complexity of the job. Straightforward work can often be priced from photographs and measurements, while larger or less clear jobs get a site visit first.

When is resealing likely to be due?

There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Sealant joints are maintenance items, so inspect them regularly.

Do you supply RAMS and insurance details?

Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We hold CHAS accreditation and Constructionline membership.

Do you work with property factors and landlords?

Yes. Managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios are our main clients for this work, and we quote building by building or as a programme.

How much does the work cost?

There isn’t a price list, because every site is different. Send photographs or drawings and we’ll price it at a fixed figure.

For owners and agents in Plastow Green

At about 50 miles from central London, Plastow Green is within reach of the capital. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres. Plastow Green sits in one of the drier corners of the country, the South East. Even so, frame mastic only goes on in dry, workable conditions, and the sunniest, most exposed sides of a building typically need attention first.

For a school such as Cheam School, perimeter mastic on windows and doors is a holiday job. Churches, halls and community buildings such as Church of St Paul are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time.

Plastow Green is about 4 miles south of Thatcham, in Hampshire. We send applicators to Plastow Green for mastic joints, handled exactly as we handle every other area. 723 places across Hampshire fall within our area, Plastow Green among them. Sites around Reading have their own page, about 13 miles away.

Commercial sites across RG19 are covered. Close to Plastow Green, our area also takes in Goose Hill (1 mile north-east), Mill Green (1 mile north), Headley (1 mile north-west), Fair Oak (1 mile east) and Ashford Hill (1 mile east). Nearby towns on our patch include Basingstoke (8 miles south-east), Andover (14 miles south-west), Tadley (4 miles east), Hook (13 miles east), Popley (8 miles south-east) and Kempshott (9 miles south-east).

Near you in Plastow Green

Plastow Green’s nearest station is Thatcham station, roughly 2.9 miles north of the centre. Well-known places in the area include Old Chapel Textile Centre (2.4 miles north-west) and West Berkshire Community Hospital (4.4 miles north-west). For a walk, there’s Thatcham Reed Beds and Ladle Hill.

Map of Plastow Green © OpenStreetMap contributors
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