
Little Somborne mastic sealing
Mastic sealing for building owners, managing agents and housing associations across Little Somborne, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.
- Failed external movement joints
- Communal area joints that look neglected
- The same joint failures repeated across a portfolio
Mastic sealing for Little Somborne sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Work for main contractors and building owners
Whether you are a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.
Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Little Somborne can form part of a wider programme.
Mastic sealing for commercial buildings in Little Somborne
Managing agents and housing associations normally need paperwork before anyone starts. For documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We are a Constructionline member and CHAS accredited, and we carry public liability insurance. Most enquiries involve water getting in round frames after rain and cracked, hardened mastic round windows on a block, across communal entrances and stairwells, window and door perimeters on blocks and shopfronts below residential blocks. A single leaking joint is often how a building in Little Somborne first comes to us: we look at the rest while we are there and tell you what we find.
Rural conversions near places like Little Somborne often set modern frames into older stone, flint or brick. Perimeter mastic there has to grip an uneven face and suit the building’s character.
A 12-month guarantee applies to all our work. Should something we installed fail, ring 01277 525 020 or email a schedule or drawings and we will come back to it.
- Where
- Little Somborne (SO20)
- Region
- Hampshire
- Cover
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Updated
- 3 November 2026

Surface by surface
Window and door perimeters on blocks
Blocks have a mix of frame materials, so the grade we pick has to bond to frame and wall alike. We will confirm the colours available for the specified product.
Communal areas
Communal entrances, stairwells and corridors have joints at door frames, screens, skirting and floor edges. Tidy, sound joints keep them looking cared for.
Keeping the joints sound
Regular inspection catches problems early. Specifically:
- Log resealing dates block by block
- Mention RAMS, insurance or CSCS requirements up front
- Check the asbestos register before any old mastic is disturbed
- Group repairs into a planned programme
Keep records of when each building was resealed. It helps plan the next round and shows what was done.
One failed perimeter normally means others on the same building are close, so it pays to look at the whole elevation. A planned reseal saves repeated visits.
Common problems we fix in Little Somborne
Poor preparation explains many failed joints. Where the faces weren’t cleaned or primed as specified, the bead peels off one side.
Site and facilities staff are often the first to spot these:
- The same joint failures repeated across a portfolio
- Complaints coming in block by block
- Patchy repairs in mismatched sealant
- Water getting in round frames after rain
For owners of several units at places like Balldown Business Centre, 2.9 miles east of Little Somborne, one programme can deal with frame and external mastic across the lot.
Questions to ask before you book
- How long is the guarantee, and what does it include?
- How they’ll work around occupants
- Their pre-qualification and accreditations
- Whether old or failed sealant will be cut out, not overlaid
Your questions answered
Will you price a mastic programme across our Little Somborne portfolio?
Yes, we quote for single buildings and for programmes across several blocks. Send the addresses and photos and we will give a fixed quote.
Is Little Somborne too far out for you?
Not at all. Little Somborne is within our area. We work across Greater London and the South East. Good photographs up front let us bring everything on the first visit.
Can you follow the specification on our project?
Yes. The specification and the manufacturer’s installation guidance are what we work to.
How many days will you need on site?
It depends on the scope, but the work normally takes anything from a day to a few weeks, depending on the number of buildings and joints. Larger or phased jobs take longer, and we will give you a timescale with the quote.
Do you guarantee the mastic work?
Every building we reseal has a 12-month guarantee. It covers our workmanship, not later building movement, damage or frame failures.
Does weather matter for sealant work?
It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.
Do you work for managing agents and housing associations?
We do. Managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios are our main clients for this work and work can be quoted per building or as a whole.
Honest limits
Our job is the joint, not everything around it. Sealant alone won’t deal with:
- Leaks from above rather than through a joint
- Cracked or crumbling render, brick or stone at the joint edges (we will tell you if so)
- Broken glass or failed sealed units
If you are not sure, just call the office on 01277 525 020 or email a schedule or drawings and we’ll give you a straight answer.
Joints and surfaces we work on
- External wall and movement joints
- Communal kitchens and washrooms
- Balcony and threshold joints
- Communal entrances and stairwells
- Window and door perimeters on blocks
- Shopfronts below residential blocks
Mastic sealing around Little Somborne: what changes locally
Rainfall across the South East, Little Somborne included, is lower than in many parts of the UK. Outside work still depends on dry joints, and south- and west-facing elevations, which take the most sun and rain, often age first. Little Somborne is about 65 miles from central London. Managed blocks of flats are a big part of commuter-belt property; their frame mastic often ages block-wide.
Trustees of buildings like All Saints Church can bring frame and external mastic into a planned maintenance list.
Little Somborne is about 6 miles west of Winchester, in Hampshire. Looking for mastic sealing in Little Somborne? We can help. Across Hampshire, 723 places are covered, including Little Somborne. Sites around Southampton have their own page, roughly 12 miles from Little Somborne.
We take on mastic joints across the SO20 postcode area, whatever the building. Buildings on Chalk Hill and Somborne Park Road are within our area for mastic joints. Close to Little Somborne, our area also takes in Up Somborne (1 mile east), Ashley (1 mile south), King's Somborne (2 miles south-west), Lower Slackstead (5 miles south) and Braishfield (5 miles south). Nearby towns on our patch include Winchester (6 miles east), Eastleigh (10 miles south-east), Andover (8 miles north), Totton (12 miles south), Chandler's Ford (8 miles south) and Hedge End (14 miles south-east).
What’s near Little Somborne
A little further out are Royal Hampshire County Hospital (5.6 miles east).
Diagnose, treat, sign off
Diagnose, treat, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. Jobs in and around smaller places like Little Somborne are typically planned as a single visit, so photographs and measurements up front really help. That way the right products come on the day.
- Each block or building is walked and the failed joints recorded with the likely cause.
- We send a fixed quote that sets out the joints, the products and the programme.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- Failed mastic is removed and the faces taken back to sound, dry material.
- Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
- Completed joints are inspected and carry a 12-month workmanship guarantee.
What we need from you
- For older buildings, check the asbestos register before work
- Tell us what induction or permit system the site runs
- Make sure the joints can be reached
Get a fixed quote
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, speak to us on 01277 525 020 or send photos by email.