Mastic sealing for building owners and managing agents in New Alresford, Hampshire
Mastic sealing for New Alresford, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- Damaged joints in communal entrances and corridors
- Complaints coming in block by block
- Occupiers reporting cold air round windows
Mastic sealing across New Alresford
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Our process
The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. What matters most for a job in New Alresford is a clear list of what needs doing. A fixed quote follows.
- First we look at the mastic on each building and note what needs replacing.
- A fixed quote follows, split by block or building if that suits you.
- Dates, areas and access are agreed so residents or tenants can be told in advance.
- We remove the old mastic completely and clean the joint faces back.
- Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
- Finished joints are looked over and the 12-month guarantee confirmed.
What we need from you
- Send asbestos survey details if the building is pre-2000
- Tell us what induction or permit system the site runs
- Agree which areas must stay open
Get a fixed quote
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we’ll fill any gaps with a visit.
Related advice
Mastic sealing in New Alresford
We diagnose before we prescribe: what has failed, what caused it and whether new sealant will actually solve it. Failed mastic is stripped, the faces taken back to sound material, primed where the manufacturer specifies and resealed, with backing rod setting the depth where it’s needed. We work on balcony and threshold joints, communal entrances and stairwells and external wall and movement joints, and the failures we’re asked to look at most are water getting in round frames after rain and failed external movement joints. One point of contact handles commercial sealant work in New Alresford from the first photographs to the final walk-round, for single jobs and planned programmes alike.
Places the size of New Alresford normally have some housing association stock, small blocks and mixed-use buildings. Their window perimeters and external joints need renewing as the mastic ages.
Our workmanship is guaranteed for 12 months, wherever the site is. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Where
- New Alresford (SO24)
- Wider area
- Hampshire
- Cover
- 12 months on every job
- Quotes
- A fixed quote before we start
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Places near New Alresford
Also in New Alresford
What the job involves on each surface
External movement joints
Brickwork, blockwork and panel joints let a building move. Once that sealant goes, rain can reach the wall.
Window and door perimeters on blocks
Frames vary from uPVC to aluminium and timber, and the product is matched to the frame material and the masonry. We’ll confirm the colours available for the specified product.
Why deal with it now?
Leaving failed external joints lets water reach the structure behind. Damp patches, stained plaster and decorating claims can follow, which is harder to deal with than resealing. For buildings in places like New Alresford, one well-planned visit beats several small ones, so it’s worth dealing with every failing joint at once.
Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.
Why clients in New Alresford choose us
- Constructionline member for supplier checks
- Our applicators hold CSCS cards
- Failed material removed, not covered up
- One phone line for London, the South East and Scotland
Read how commercial sealant jobs are priced and how we’re accredited.
Doing it in-house
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.
Owners, agents and contractors
Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.
We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. New Alresford can form part of a wider programme.
Honest limits
Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. These need a different solution:
- Masonry that has broken away beside the joint
- Leaks through the frame itself rather than the perimeter
- Leaks from above rather than through a joint
Not sure which it is? You can speak to us on 01277 525 020 or email the details over and we will tell you honestly before you book.
Surfaces we seal
- Communal entrances and stairwells
- External wall and movement joints
- Shopfronts below residential blocks
- Window and door perimeters on blocks
- Balcony and threshold joints
- Communal kitchens and washrooms
Frames, entrances and external joints in New Alresford
The South East is one of the drier parts of the UK. Even so, frame mastic only goes on in dry, workable conditions, and elevations facing the sun and the prevailing weather are normally where frame mastic ages first. At about 54 miles from central London, New Alresford is within reach of the capital. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres, and window and balcony mastic on them tends to age at the same rate.
For a school such as Sun Hill Junior School, perimeter mastic on windows and doors is a holiday job. Older community buildings, Church of St John the Baptist among them, often have frames of mixed ages whose mastic varies. Historic properties like Hinton Ampner House (to the south of New Alresford) show the age of some local stock, where frame mastic must suit soft brick or stone.
New Alresford is about 7 miles east of Winchester, in Hampshire. Looking for mastic sealing in New Alresford? We can help, as we do across Hampshire. We work across 723 places in Hampshire, large and small. Southampton is covered too, some 15 miles away.
We cover the SO24 postcode districts for mastic joints. Streets here include Station Road, Elm Road and Bramble Hill. New Alresford sits on or close to the B3046 and B3047, which helps when planning parking and deliveries for the job. If your building is just outside New Alresford, we cover Bishop's Sutton (2 miles east), Gundleton (2 miles east), Cheriton (2 miles south), Hinton Ampner (3 miles south) and Bramdean (3 miles south-east). Nearby towns on our patch include Basingstoke (13 miles north), Winchester (7 miles west), Eastleigh (11 miles south-west), Horndean (14 miles south-east), Chandler's Ford (12 miles south-west) and Alton (9 miles north-east).
Near you in New Alresford
Around New Alresford, our work takes us to commercial buildings near The Running Horse Public House and Perins School. A little further out are Barton Castle (4.3 miles north-east). Green spaces nearby include Shutts Copse.
FAQs: New Alresford
Will you price a mastic programme across our New Alresford portfolio?
Yes. Planned programmes across a building, block or estate are a core part of this service. Residents are given notice through you, and the work moves building by building.
Which documents can you supply for work in New Alresford?
We will confirm the paperwork you need, such as RAMS, our insurance certificate and CSCS details, with the quote. We are CHAS accredited and a Constructionline member, with £5m public liability insurance and CSCS-carded applicators.
Do you work to architects’ specifications?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and we raise anything unclear before work begins.
How do you reach windows on upper floors?
It depends on the building. We agree access with you at quote stage so there are no surprises.
How long do sealant joints last?
It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.
Who decides which product is used?
A specification, where there is one, decides it. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
Are you insured?
Yes. We are fully insured, including public liability cover.