Syze Developments

About Us

Our Work

Resources

Extensions

Lofts

Examples

Your vision is our priority

Syze Developments are a construction company based in Waterlooville, Hampshire, dedicated to outstanding home improvements. We prioritise your satisfaction above all else and are here to guide you through every phase of the project.

Our Approach To Building

A big project can be daunting – we aim to make the process as straightforward as any other service.

Appraisal

Understanding your vision comes first. However far you’ve got with planning, we’ll work with you to arrive at a solution that meets your needs and satisfies regulations. Our long experience frequently helps to add clarity or suggest innovative features for your living space.

Budgeting

Once the design is established, we produce a detailed report showing the cost of materials, labour, permits and other associated expenses. This transparent cost breakdown makes it easy to understand the full scope of the project – allowing you to identify cost-saving opportunities.

Construction

An accurate schedule outlines the entire build – from foundations to finishing touches. Progress is closely monitored to ensure the plan is followed, with problems addressed immediately. Our quality standards ensure that your complete satisfaction is guaranteed from the outset.

Explore Recent Work

See some of the spaces we have created for our clients, and the stories behind them.

Extension and garden refurbishmentmike.cooter2026-05-28T16:36:00+01:00

Syze Developments Extension and garden refirbishment

Extension and garden refurbishment

Extension, Residential

Bungalow double garage conversionmike.cooter2026-02-02T06:27:06+00:00

Bungalow double garage conversion

Garage Conversion, Residential

Mid-terrace Loft Conversionmike.cooter2026-02-24T17:09:45+00:00

Mid-terrace Loft Conversion

Loft Conversion, Residential

      EXCELLENT  
   Based on 8 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Jason Ralphs 
 
 
 
 Trustindex verifies that the original source of the review is Google. We are really happy with the quality of the work that Syze completed. They managed the onsite team of trades well and we had an open and honest dialogue throughout the build. We had several complications to the project such as asbestos removal that required specialist removal, which they managed well. We would use Syze again for future projects.
  
 
      Posted on Google  
   
   Lisa Guile 
 
 
 
 Trustindex verifies that the original source of the review is Google. Syze Developments were recommended to me & rightly so.  From the word go, the owner and contractors were professional, friendly and above all, helped me with decisions in how best to refurbish my 70's bungalow into a stylish contemporary home.  Simon will project manage everything for you, liaising with architects, structural engineers & surveyors.  His team are experienced & dedicated and take professional pride in their work.  The results speak for themselves.  I recommend them to anyone with small, medium or large size projects.  They carried out a complete refurbishment of my 3BR bungalow with new kitchen, bathroom and beautiful bifold doors.  They even took care of my needs in the garden, laying composite decking & adding a stunning resin driveway.  I'm happy to show case my home in Waterlooville.  Just ask Simon to contact me!  That's how much I rate Syze Developments.
  
 
      Posted on Google  
   
   Nick Blake 
 
 
 
 Trustindex verifies that the original source of the review is Google. Simon and team have done a terrific job for us. Our architect had designed a new kitchen extension, together with several other alterations to the layout of our house. The team, led by John..a stickler for detail..were courteous, clean and tidy and worked around us as we continued to live in the house over a multi-month build. All the trades seemed nicely synchronised and have clearly worked together many times. Inevitable design changes came up and these were all expertly integrated into the plan, with budget changes discussed and agreed as we went. The team made many helpful suggestions, which we'd have never thought about. This was our first ever 'development' and we were a bit nervous, but we're delighted with the result.
  
 
      Posted on Google  
   
   Abby Neal 
 
 
 
 Trustindex verifies that the original source of the review is Google. Quick, clean and everything has a great finish. Thank you to Simon and his entire team for getting the project completed in the time frame discussed and for making our visions come to life. We’re really pleased with how everything has turned out.
  
 
      Posted on Google  
   
   Pauline Stainsby 
 
 
 
 Trustindex verifies that the original source of the review is Google. Would highly recommend Simon and his team. We had our open plan kitchen extension designed and built by Syze developments to create a downstairs bedroom. The workmanship was excellent. The build was on time and in budget.
  
 
      Posted on Google  
   
   Brandon Killien 
 
 
 
 Trustindex verifies that the original source of the review is Google. The end result was exactly what we wanted. The project was slightly delayed due to supplier issues, but it was worth the wait. The team was polite and ensured the area was left clean every night. There was slight creep of the scope of work, but this was due to another trade letting us down. Simon and the team carried out this additional work with no issue, and reasonably priced. Very happy customer.
  
 
      Posted on Google  
   
   Darren Tutte 
 
 
 
 Trustindex verifies that the original source of the review is Google. Simon and his team completed a 2-storey side extension as well as internal re-design of the existing property.  Really pleased with the build quality and workmanship.  The core team were friendly, experienced and did a great job trying to minimise disruption as best they could.  All the different trades worked well together and were always happy to discuss and make any changes.
  
 
      Posted on Google  
   
   Caroline Siddall 
 
 
 
 Trustindex verifies that the original source of the review is Google. I looked into several building firms before trusting Simon and his team to do the job. It was a complex double storey extension and redecoration to accomodate my father in law. I am delighted with the results - I would use them again without hesitation. All workmen used were very clean and tidy and any issues were resolved quickly and without disruption.