
Highwood mastic sealing
Looking for mastic sealing in Highwood? It’s simple: send details, get a quote, we seal, guaranteed.
- Complaints coming in block by block
- Cracked, hardened mastic round windows on a block
- Leaks at window and door perimeters
Need mastic sealing in Highwood?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Our process
At the end of each section, the masking comes off, the area is cleaned and every joint is checked. If an area should be left alone while the sealant cures, we say how long and put signs out. Smaller jobs around Highwood can be grouped with others nearby, which keeps travel down. You will have a fixed quote before work starts.
- Each block or building is walked and the failed joints recorded with the likely cause.
- A fixed quote follows, split by block or building if that suits you.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- We remove the old mastic completely and clean the joint faces back.
- Deep joints get backing rod, faces are primed if the manufacturer specifies it, then the joint is sealed and tooled.
- Completed joints are inspected and carry a 12-month workmanship guarantee.
Preparing the site
- Send asbestos survey details if the building is pre-2000
- Flag any permit to work we will need
- Make sure the joints can be reached
Getting a fixed quote
Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, give us a call on 01277 525 020 or email a schedule or drawings.
Related advice
How we handle mastic sealing in Highwood
Across Highwood and the rest of Hampshire, we work the same way: you send details, we return a fixed quote, the joints are resealed and the 12-month guarantee follows. Addresses, photographs of typical joints and a rough idea of quantities let us give a quick quote, and site visits can be arranged. Site teams most often ask us about draughts at frames across a block and cracked, hardened mastic round windows on a block, on balcony and threshold joints, window and door perimeters on blocks and shopfronts below residential blocks. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Highwood is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Owners and agents with buildings around smaller places such as Highwood tend to manage small terraces of association properties, converted barns and commercial units. Frame and wall-joint mastic on all of them ages and hardens.
Every job we finish is backed by a 12-month workmanship guarantee. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Location
- Highwood (BH24)
- Wider area
- Hampshire
- Cover
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026

Also near Highwood
What else we do in Highwood
Do you need mastic sealing in Highwood?
Previous repairs often sealed new mastic over old. New sealant won’t grip failed sealant and the repair soon fails.
Site and facilities staff are often the first to spot these:
- Water getting in round frames after rain
- Damaged joints in communal entrances and corridors
- The same joint failures repeated across a portfolio
- Patchy repairs in mismatched sealant
Schools and community buildings such as Poulner Infant School need frame and external mastic kept sound like any building.
Comparing quotes
- Who will actually carry out the work
- Their approach to joint depth and backing
- Proof of insurance
- How long is the guarantee, and what does it include?
Site staff or a sealant specialist?
Certain joints really need a specialist: for example 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.
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Why it’s worth doing now in Highwood
Sealing over failed mastic looks tidy for a while. It doesn’t bond and normally fails within a short time. Cutting out and resealing properly does it once. Around Highwood, it’s better to renew all the failing joints at once, rather than one at a time. Send photos of each area and we’ll quote for the lot.
We don’t publish prices, since every building and every scope is different. Call for a quote and we will price your job on its own details.
Why choose Mastic Doctor in Highwood
- CHAS accredited
- Public liability insurance in place
- A Constructionline member, so easy to vet
- One phone line for London, the South East and Scotland
Read how commercial sealant jobs are priced or our accreditations.
Frames, entrances and external joints in Highwood
There are four care or nursing homes within about 2 miles of Highwood. Owners of care premises can bring window and door mastic into a phased programme planned around the home. Highwood is in the South East, one of the UK’s drier regions. Outside work still depends on dry joints, and south- and west-facing elevations, which take the most sun and rain, often age first.
Landlords with units on estates such as Headlands Business Park (to the west of Highwood) can bring frame, door and external mastic across several units into one programme. Churches, halls and community buildings such as St John the Baptist are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time.
Highwood is about 2 miles north-east of Ringwood, in Hampshire. We cover commercial sites throughout Highwood, for single jobs and planned programmes alike. We work across 723 places in Hampshire, from busy centres to rural villages. Our Southampton page has more on work in that area.
Work on mastic joints is covered throughout BH24, for business premises of every kind. Nearby places we also cover include Hangersley (1 mile south), Rockford (1 mile north-west), Shobley (1 mile south-east), Forest Corner (1 mile south-east) and Blashford (1 mile west). Bigger towns within reach include Totton (12 miles east), Lymington (12 miles south-east), Romsey (15 miles north-east), New Milton (9 miles south-east), Barton on Sea (10 miles south-east) and Dibden Purlieu (15 miles east).
Local landmarks in Highwood
Locally, jobs take us to sites close to Ringwood School Academy and Alice Lisle Inn. A little further out are St Leonard's Hospital (5.5 miles south-west). For a walk, there’s Linbrook Lake and Blashford Lakes.
Honest limits
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Misted or failed double-glazed units
- Asbestos-containing sealant, which we don’t remove
- Water coming in from the roof or rainwater goods
Not sure which it is? You can give us a call on 01277 525 020 or use the quote form and we will tell you honestly before you book.
What we seal
- Window and door perimeters on blocks
- External wall and movement joints
- Balcony and threshold joints
- Shopfronts below residential blocks
- Communal entrances and stairwells
- Communal kitchens and washrooms
For managing agents and facilities managers
Hospitality, education, healthcare, office and retail clients come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.
FAQs: Highwood
Is Highwood too far out for you?
No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. We plan jobs in smaller places so return trips are kept to a minimum.
Will you work in a care home in Highwood without moving residents out?
Yes. Care settings are planned area by area, at times agreed with the home. Noise and disruption are kept to a minimum.
Do you work to architects’ specifications?
Yes. The specification and the manufacturer’s installation guidance are what we work to.
Is mastic sealing guaranteed?
A 12-month guarantee covers our work. It covers our workmanship, not later building movement, damage or frame failures.
How do I request a quote?
There are four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photos and a postcode.
How long will the new sealant last?
It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.
Which sealant will you use?
A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.