Cavity Wall & Loft Insulation in Stowmarket | Co-Dunkall

Author: Co-Dunkall Ltd || Date: 13th July 2026

Co-Dunkall Ltd provides Blown Bead and Loft Roll Stowmarket services to homeowners and contractors in Suffolk, including blown bead and loft roll insulation for cavity walls and lofts. Whether you need cavity wall insulation topped up or a full loft roll installation, our team covers Stowmarket and the surrounding mid-Suffolk area as part of our insulation supply and installation services through Eastern Insulation Supplies.

Key Facts — Blown Bead & Loft Roll in Stowmarket

Services: Blown bead cavity wall insulation, loft roll supply and installation
Area: Stowmarket and mid-Suffolk, plus Norwich, Ipswich, Bury St Edmunds, Lowestoft, Great Yarmouth, King’s Lynn
Operating since: 2008 — East Anglia’s largest and most-reviewed screeding and insulation firm
Supply arm: Eastern Insulation Supplies

Blown Bead and Loft Roll Stowmarket — What’s Involved

Blown bead insulation is a method of filling or topping up cavity walls using polystyrene beads injected through small holes drilled in the outer wall. It is particularly effective for older properties in Stowmarket where the original cavity fill has settled or was never installed. The beads bond together inside the cavity, reducing heat loss and improving the energy rating of the property.

Loft roll insulation — typically mineral wool laid between and over ceiling joists — is one of the most cost-effective ways to reduce heat loss through the roof. Current Building Regulations recommend a minimum of 270mm total loft insulation depth. Many homes in Stowmarket, particularly those built before the 1990s, still have less than 100mm in place.

Blown bead — ideal for cavity walls, retrofit top-ups, and hard-to-reach voids
Loft roll — mineral wool rolls laid to 270mm for Building Regs compliance
Combined approach — cavity and loft insulation together deliver the greatest improvement in thermal performance

Why Choose a Local Stowmarket Specialist

We have been working across Norfolk and Suffolk since 2008, so we understand the housing stock in Stowmarket well — from Victorian terraces along Ipswich Street to newer-build estates on the edges of town. Our team can assess whether blown bead is suitable for your property’s cavity type and condition, or whether loft roll is the priority. Because we also supply insulation materials through Eastern Insulation Supplies, we can keep costs sensible and source materials without delay.

As East Anglia’s most-reviewed firm in our sector, we take pride in giving straightforward advice. If blown bead isn’t right for your property, we’ll tell you.

Areas Around Stowmarket We Cover

Our insulation services extend well beyond Stowmarket itself. We regularly work in Needham Market, Elmswell, Woolpit, Rattlesden, Haughley, and Bacton, as well as the larger towns across the region — Ipswich, Bury St Edmunds, Norwich, Lowestoft, Great Yarmouth, and King’s Lynn. If you’re in mid-Suffolk or anywhere in East Anglia, we can help.

Frequently Asked Questions

How do I know if my cavity walls need topping up?

Cold internal walls, uneven heating, or high energy bills can all indicate that your cavity insulation has slumped or was never fully installed. We can carry out a borescope inspection to check the cavity condition before recommending blown bead.

How long does blown bead insulation take to install?

Most semi-detached or terraced properties in Stowmarket can be completed within a day. The injection holes are small and are made good on the same visit.

Is loft roll insulation worth it if I already have some?

If your existing loft insulation is under 270mm, topping it up is one of the simplest and most effective energy improvements you can make. The material cost is low and the reduction in heat loss is significant.

Get a Quote for Insulation in Stowmarket

If you’re considering blown bead or loft roll insulation for your Stowmarket property, get in touch with our team. We’ll advise on the right approach for your home and provide a clear, no-obligation quote. Call us or use the contact form on our website to arrange a visit.

Blown Bead & Loft Roll Insulation — Stowmarket, Suffolk

Read what our customers had to say

    
 
 
         
   S Pearson 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great service, professional and reliable each time we use them.
  
 
        
   A Thompson 
 
 
 
 Trustindex verifies that the original source of the review is Google. The team did a professional and courteous job for over 100m2 with insulation. Helpful advice, efficient measures, laying out was done with attention to detail. Pouring was prompt and careful. The skip liner was much appreciated. The levels were perfect for our doors. Helpful advice and ensured we’re satisfied with the results. Thank you and well done. 👍🏻
  
 
        
   M Boby 
 
 
 
 Trustindex verifies that the original source of the review is Google. Co-Dunkall ltd recently laid a floor screed for a new gymnasium floor.Very pleased with the service they provided throughout the process.Hard working team that kept me informed of deliveries to site and left the site spotless .Client super impressed with the floor finish .
  
 
        
   O V 
 
 
 
 Trustindex verifies that the original source of the review is Google. I did screed with them twice, we had our house done in 2 phases and in the 1st phase they supplied us with specific stats, on the 2nd phase they supplied us with different stats model and a control box which allows to connect to them remotely but, then I had an issue with the phase 1 stats won't connect to the system as they don't support that functionality. I rang their customer support and explained the issue, they offered to swap the phase 1 stats with new ones so, all stats will be from the same model and all will connect to the control box.
One more word about their expertise, the 2 phases were done a part so the 1st phase screed was higher than the existing old bit, when they came to do the old bit on the 2nd phase, I asked if they can do the screed so that both bits will be same height, they did it perfectly, both phases met up level and the wood floor on top is at the same height, I must say I was sceptic but, these guys are awesome, they are experts in what they do. that made me so happy!
That is a company who cares about their business and about their customers.
I will definitely recommend and will definitely do business with them again.
Thanks you Co-Dunkell
  
 
        
   P W 
 
 
 
 Trustindex verifies that the original source of the review is Google. We had our screed pumped in and laid by the team at Co-Dunkall today at our self-build, the three man team onsite and those in the office were all professional and friendly at all stages from quotation, survey and the final delivery and instation. Everyone has done what they said they would do and within the timescale given. If you need pumped floor screed I can recomend this company 100%
  
 
        
   H Campbell 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very good service. Nicky and Adrian super helpful to see the job through! 5 star. Screed is silky smooth
  
 
        
   M Brooks 
 
 
 
 Trustindex verifies that the original source of the review is Google. Complete bungalow floor screeded by these guys.
Bob who surveyed the project and supervised the screed being laid is a credit to the company. No more than 1mm difference in levels throughout !
  
 
        
   S smith 
 
 
 
 Trustindex verifies that the original source of the review is Google. We had Co-dunkall provide a cemfloor screed for an outbuilding which needed the floor raising. Thoroughly professional service 3 survey calls and inspections prior to the job. Nikki and the office team all highly knowledgable on so many aspects and on the day they even provided a 6 wheel mini mix to accommodate the property complexities. Good follow up and so pleased for a  very clean and tidy washout considering how messy the job can be. You would not know they had been on site. End result is exactly what we needed
  
 
        
   L Bailey 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent job and Excellent service.
Had 100% confidence in them.
Can't fault them.
They are very professional and they have a lovely approach to customer service.

We have used Co Dunkall on any occasions and will do so in the future.

Would highly recommend.

Thank you very much from the Bailey's.
  
 
  
 
  
 
   Google rating score: 4.8 of 5, based on 53 reviews

For a quote or any general questions and enquiries please get in touch with our team