
Mastic sealing for building owners and managing agents in Alderholt, Hampshire
Our CSCS-carded applicators take on mastic sealing for building owners, managing agents and housing associations in Alderholt and the surrounding area. Send details for a fixed quote.
- The same joint failures repeated across a portfolio
- Damaged joints in communal entrances and corridors
- Complaints coming in block by block
Mastic sealing in Alderholt
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
What affects the price in Alderholt
Your fixed quote is built from the real scope. It allows for:
- Specialist products, such as fire-rated or hygienic sealants
- How much there is to seal
- The size and state of each joint
- Removal of failed or old sealant
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.
What to include in your enquiry
The more we know, the firmer the quote. When you get in touch, include:
- When you need the work done
- Approximate linear metres or a joint schedule
- Asbestos survey details if the building is older
- The site address and postcode
Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To ask for one, phone 01277 525 020 or send photos by email.
Mastic sealing in Alderholt, done properly
Across Alderholt and the rest of Hampshire, we work the same way: send details, get a fixed quote, we seal, and the work is guaranteed. A list of buildings, a few photographs and approximate joint numbers are enough for a quick quote, and site visits can be arranged. If you’re dealing with leaks at window and door perimeters and estate-wide sealant that is simply worn out, we can help. A single leaking joint is often how a building in Alderholt first comes to us: we look at the rest while we are there and tell you what we find.
In a smaller place such as Alderholt, landlords and agents tend to look after small blocks, flats over shops, sheltered housing and commercial units. The mastic around their frames and external joints ages like anywhere else.
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
- Alderholt (SP6)
- Wider area
- Hampshire
- Cover
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026

Why deal with it now?
Mixed repairs by different contractors leave a patchwork of products and colours. Resealing a whole building gives a consistent finish and one 12-month guarantee. For buildings in places like Alderholt, one well-planned visit beats several small ones, so we’d suggest renewing all the joints that are going, not just the worst.
Pricing mastic joints depends on how many there are, their condition and the access, and any specification that applies. Ask us for a fixed quote.
What you get with us
- One contact handling all your sites
- Colours chosen to suit frames, cladding or finishes where possible
- Colour options checked against the specified product
- CHAS accredited contractor
Take a look at what affects the cost and how we’re accredited.
Diagnose, treat, sign off
Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself typically takes a day or two for a single block, longer for an estate programme, and we clear our waste as we work. For a job in Alderholt, the main thing is a clear picture of the work. A fixed quote follows.
- Each block or building is walked and the failed joints recorded with the likely cause.
- You get a fixed quote, priced per building where that helps your budgeting.
- 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.
- Backing rod and primer go in where the joint and the product need them, then new sealant is applied and tooled.
- Each building is checked on completion and the work carries our 12-month guarantee.
What we need from you
- Let building users know which areas are affected
- Share the asbestos register for older buildings
- Clear stock, furniture or equipment away from the joints
Getting a fixed quote
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to phone 01277 525 020 or email the details over with what you know.
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Towns and villages near Alderholt
Other services in Alderholt
Frames, entrances and external joints in Alderholt
Rainfall across the South East, Alderholt included, is lower than in many parts of the UK. Even so, frame mastic only goes on in dry, workable conditions, while the elevations that take the most sun tend to show hardened mastic first.
For a school such as St James' Church of England First School, perimeter mastic on windows and doors is a holiday job. With historic buildings such as Breamore House (4.5 miles north-east of Alderholt) in the wider area, owners of older properties around Alderholt should expect mastic to need a product that suits old masonry. Trustees of buildings like Church of St James can bring frame and external mastic into a planned maintenance list.
Alderholt is in Hampshire. We send applicators to Alderholt for mastic joints. Our Hampshire coverage takes in 723 places. Our Southampton page has more on work in that area.
We take on mastic joints across the SP6 postcode area, for business premises of every kind. We cover commercial and managed buildings on Station Road, Antell's Way and South Hill. Main routes into Alderholt include the B3078, useful when we plan access and materials. We also cover Sandleheath (1 mile north), Ashford (2 miles north-east), Broxhill (2 miles west), Damerham (2 miles north-west) and Rockbourne (4 miles north). A short drive away, we cover Totton (14 miles east), New Milton (13 miles south-east), Ringwood (5 miles south-east), Barton on Sea (14 miles south-east), Ashley (13 miles south-east) and Eling (15 miles east).
Near you in Alderholt
Locally, jobs take us to sites close to The Churchill Arms and The Burgate School and Sixth Form, among other places. Nearby you’ll also find Godshill Castle Hill (3.6 miles north-east) and Fordingbridge Doll Museum (2 miles north-east). For a walk, there’s Blashford Lakes and Linbrook Lake.
Your questions answered
Is Alderholt too small for you to travel to?
Not at all. Alderholt is within our area. London and every South East county are within our area. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.
Is Fordingbridge Business Park, near Alderholt, within your area?
Yes, sites like Fordingbridge Business Park are within our area, along with the rest of Alderholt. A few photos and the unit address let us price the work.
Do you supply RAMS and insurance details?
Let us know your requirements: tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote. We are CHAS accredited and a Constructionline member.
Does the weather affect the work?
It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Internal work is far less affected.
Can you quote from photos?
It depends on the job. Simple work can often be priced from photos, and bigger or more complex jobs typically get a visit.
How do I request a quote?
The quote form is the simplest route, though you can also ring 01277 525 020 or email the details over. Photos, drawings or a joint schedule help us quote quickly.
How long before the joints can be used?
Curing time varies by product, and we confirm it on the day.
What sealant work can’t fix
Being straight saves everyone time. New sealant won’t cure:
- Asbestos-containing sealant, which we don’t remove
- Misted or failed double-glazed units
- Leaks from above rather than through a joint
If you’re not sure, just speak to us on 01277 525 020 or send details through our quote form and we’ll give you a straight answer before you book.
Where we work in Alderholt
- External wall and movement joints
- Shopfronts below residential blocks
- Communal kitchens and washrooms
- Window and door perimeters on blocks
- Balcony and threshold joints
- Communal entrances and stairwells
What the job involves on each surface
Window and door perimeters on blocks
Window and door perimeters are where most mastic failure shows. Old perimeter mastic is removed, the joint prepared and new sealant tooled in.
Commercial and mixed-use buildings
Where retail and residential share a building, so phasing has to suit both. Tell us your site hours and access windows and we’ll plan around them.
Doing it in-house
What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.