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

Grayshott mastic sealing

Commercial sealant work in Grayshott for contractors, FMs and building owners: mastic sealing for building owners, managing agents and housing associations, with a fixed quote first.

  • Failed external movement joints
  • The same joint failures repeated across a portfolio
  • Communal area joints that look neglected
1
Send details
Photos, drawings or a schedule, or we visit.
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.
London, the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Mastic sealing across Grayshott

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

Common problems we fix in Grayshott

Previous repairs often sealed new mastic over old. New sealant won’t grip failed sealant, so these repairs rarely last.

Clients usually get in touch after noticing something like this:

  • Worn sealant at communal door frames
  • Complaints coming in block by block
  • Window mastic that has split and shrunk
  • Open joints in brickwork or panels

Trustees of buildings like Church of St Luke can bring frame and external mastic into a planned maintenance list.

What your quote should include

  • Proof of insurance
  • Their approach to joint depth and backing
  • How long is the guarantee, and what does it include?
  • How the joint faces will be prepared and primed

Questions to ask before you appoint anyone

About our mastic sealing in Grayshott

Mastic Doctor has sealed joints on commercial and residential blocks since 2005. Every applicator holds a CSCS card and we hold public liability insurance. Resealed mastic joints in Grayshott carry our 12-month guarantee. The enquiries we see most involve patchy repairs in mismatched sealant and damp patches beside frames, across balcony and threshold joints, window and door perimeters on blocks and shopfronts below residential blocks. Looking for mastic applicators who cover Grayshott? We have been sealing commercial buildings since 2005, with CSCS-carded applicators.

In a smaller place such as Grayshott, landlords and agents tend to look after small blocks, flats over shops, sheltered housing and commercial units. Their window perimeters and external joints need renewing as the mastic ages.

The 12-month guarantee covers our workmanship: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

Place
Grayshott (GU26)
Region
Hampshire
Cover
12 months on our workmanship
Quotes
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Planned mastic for Grayshott portfolios

Grayshott has two care or nursing homes no more than 2 miles away. For owners and operators of care buildings, window perimeters and external joints are best renewed in planned phases around residents. Central London is about 39 miles from Grayshott. Managed blocks of flats are a big part of commuter-belt property.

If you own or manage units on a site such as Kings Road Industrial Estate (2.1 miles south-east of Grayshott), failed mastic on frames, door surrounds and external joints can be dealt with unit by unit. For agents with blocks near Haslemere station, 2.2 miles to the south-east of Grayshott, a block-wide mastic programme deals with frames, balconies and entrances in one go.

Grayshott is about 7 miles south of Farnham, in Hampshire. We send applicators to Grayshott for mastic joints, handled exactly as we handle every other area. Grayshott is one of 723 places in Hampshire on our list. We also cover Portsmouth, some 25 miles away.

Work on mastic joints is covered throughout GU26. We cover commercial and managed buildings on Church Lane, Vale Wood Lane and Avenue Road and the roads nearby. Close to Grayshott, our area also takes in Hindhead (1 mile east), Nutcombe (1 mile south-east), Beacon Hill (1 mile north), Whitmoor Vale (1 mile north-west) and Green Cross (2 miles north). Further afield, our area takes in Farnborough (13 miles north), Fleet (12 miles north), Aldershot (9 miles north), Alton (10 miles west), Petersfield (11 miles south-west) and Bordon (5 miles west).

Around Grayshott

In Grayshott, that means premises near St Edmund's School, The Fox & Pelican pub and Woolmer Hill School, among other places. The closest station to Grayshott is Haslemere station, about 2.2 miles south-east. Nearby you’ll also find Haslemere and District Hospital (2.4 miles south-east). The countryside around Grayshott includes Lynchmere Commons and Upper Lake.

Map of Grayshott © OpenStreetMap contributors

Common questions from Grayshott clients

Will you work in a care home in Grayshott without moving residents out?

Yes. Care settings are planned area by area, at times agreed with the home. We follow the home’s own procedures throughout.

Does your area include sites such as Kings Road Industrial Estate, near Grayshott?

Yes, sites like Kings Road Industrial Estate are within our area, along with the rest of Grayshott. Photos and a short description are enough for a first look.

When can the area be used after sealing?

Curing time varies by product, and we confirm it on the day, and flag anything to keep off until it has cured.

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.

How long does a job like this take?

The duration is planned around your programme and the access we are given. You will have an expected duration with the quote.

Can you take on resealing for a block portfolio?

We do. Most of our mastic sealing is for agents, factors, housing associations and portfolio landlords and work can be quoted per building or as a whole.

What’s the quickest route to a quote?

There are four steps: send details, get a quote, we seal, guaranteed. The first step only needs photos and a postcode.

What sealant work can’t fix

We check first that sealant really is the fix. It isn’t the answer for:

  • Leaks from above rather than through a joint
  • Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
  • Cracked or crumbling render, brick or stone at the joint edges (we will tell you if so)

Not sure which it is? You can give us a call on 01277 525 020 or send details through our quote form and we’ll tell you honestly.

Where we work in Grayshott

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

Building owners, agents and FMs in Grayshott

For main contractors, we work as the sealant subcontractor. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.

Hospitality, education, healthcare, office and retail clients book us directly too. We plan around the way the building is used, so the building keeps working while we do.

How the job changes by surface

Estate-wide resealing programmes

Housing associations and agents often manage many similar blocks. We quote building by building and work through them in turn.

Commercial and mixed-use buildings

Tenants in commercial buildings need to keep trading, so we plan around them.

From enquiry to sign-off

Tell us your site hours and access windows and we’ll plan around them. While we are working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. Work in places the size of Grayshott is planned as a single visit where we can. Clear photos and measurements help us bring the right products.

  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. We finish each building before moving to the next.

Before we start on site

  • Let building users know which areas are affected
  • Explain the parking and delivery arrangements
  • Make sure the joints can be reached

Ask for a quote

The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or call the office on 01277 525 020 or send photos by email if you’d rather talk the job through.

Get a quick quote

Related advice

Maintenance after handover

To get the most from the new sealant:

  • Keep a record of when each building was resealed
  • Prioritise elevations facing the weather
  • Keep bins and bikes away from communal door frames
  • Have the asbestos survey to hand for older buildings

Our workmanship is covered for 12 months, so report any failure in that time. Beyond that, routine checks spot the next round of repairs.

One failed perimeter usually means others on the same building are close, so it pays to look at the whole elevation. Doing them together saves going back again and again.

Accreditations

Trusted. Accredited. Insured.