Building a home, putting up a commercial property, or handling a renovation is one of the biggest financial commitments most people make in their lifetime. The difference between a project that finishes on time and within budget, and one that drags on for years with half-built walls and a drained bank account, almost always comes down to one decision: who you hired to build it.
Every year, property owners across Kenya lose money to contractors who disappear mid-project, cut corners on materials, or simply don’t have the technical know-how to deliver what they promised. Some projects stall for months because the contractor underquoted just to win the job, then came back asking for more money once the foundation was already in the ground. Others end up with cracked walls, leaking roofs, or plumbing that needs to be redone within a year of moving in.
None of this is inevitable. With the right questions and a bit of due diligence upfront, you can avoid almost all of it. Here are ten things to check before you hand your project, and your money, to any contractor.
1. Verify Registration and Credentials
This is the first filter, and skipping it is how most bad hiring decisions start. A legitimate contractor in Kenya should be registered with the National Construction Authority (NCA) and able to show you their registration certificate without hesitation. Depending on the scale of your project, you’ll also want to confirm they’re registered as a company with the relevant authorities, and that any engineers or architects attached to the project hold valid certification from bodies like the Engineers Board of Kenya (EBK) or the Board of Registration of Architects and Quantity Surveyors (BORAQS).
If a contractor gets evasive when you ask for these documents, or gives you excuses about why they “don’t have them on hand,” treat that as a warning sign, not a minor inconvenience.
2. Review Previous Projects
Ask to see work the contractor has actually completed, and ideally, projects similar in scale and type to what you’re planning. A contractor who’s only ever done small residential renovations may not be equipped to handle a multi-unit apartment block, and vice versa.
Where possible, visit the site in person rather than relying on photos. Photos can hide a lot: uneven plaster, poor tiling, doors that don’t sit flush in their frames. Walking through a completed project tells you far more about workmanship than any portfolio ever will.
3. Check Client References
Every reputable contractor should have past clients willing to speak on their behalf. Ask for at least two or three references and actually call them. Don’t just ask “were you happy with the work,” ask specific questions:
- Did the project finish on the agreed timeline?
- Were there unexpected costs added along the way?
- How did the contractor handle problems when they came up?
- Would they hire this contractor again?
The answers to these questions tell you far more than a generic testimonial on a website ever could.
4. Consider Experience and Expertise
Not all construction work is the same, and experience in one area doesn’t automatically translate to another. A contractor who’s built dozens of bungalows may have never handled a multi-storey apartment block, which requires a completely different approach to structural design, load-bearing calculations, and floor-by-floor sequencing.
Match the contractor’s track record to your specific project type, whether that’s a residential home, a commercial building, an apartment block, or a renovation. Ask directly: “How many projects like mine have you completed in the last two years?”
5. Request a Detailed Quotation
A serious contractor will give you an itemized Bill of Quantities (BQ), not a rough number scribbled on a piece of paper. This should break down costs by category: substructure, superstructure, finishes, electrical, plumbing, and any other relevant items, along with quantities and unit prices where possible.
A detailed quotation does two things for you. First, it lets you compare quotes from different contractors on a like-for-like basis. Second, it protects you later, if the contractor tries to introduce “extra” costs that weren’t part of the original scope, you have a document to point back to.
6. Compare Value, Not Just Price
It’s tempting to go with whoever quotes the lowest figure, but this is one of the most common ways property owners end up in trouble. An unusually low quote often means one of three things: the contractor plans to use inferior materials, they’ve underquoted and will come back asking for more money mid-project, or they simply don’t understand the full scope of what the job requires.
Look at the full picture, quality of materials specified, the contractor’s track record, how they manage timelines, and what’s actually included in the price, before deciding based on the number alone.
7. Evaluate Communication Skills
Construction projects run into unexpected issues all the time, that’s the nature of the work. What separates a good contractor from a bad one isn’t whether problems come up, it’s how quickly and clearly they communicate when they do.
Pay attention during your initial conversations. Does the contractor respond to your calls and messages promptly? Do they explain technical issues in a way you can actually understand? Are they upfront about potential challenges, or do they only tell you about problems after they’ve already caused delays? A contractor who goes quiet when things get difficult is a contractor who will cost you time and money.
8. Prioritize Safety Standards
Safety on a construction site protects everyone involved, the workers, your family, your neighbors, and you as the property owner. A contractor who cuts corners on safety is often the same contractor who cuts corners elsewhere.
Ask about their safety protocols. Do workers have proper protective equipment? Is the site secured to prevent accidents, especially if you’re building in a residential area with foot traffic nearby? Does the contractor carry insurance that covers workplace injuries? These aren’t questions to skip just because construction is inherently risky work.
9. Insist on a Written Contract
Never start construction on a verbal agreement or a handshake, no matter how much you trust the contractor. A proper written contract should spell out the full scope of work, payment schedule and milestones, project timeline, materials specifications, and what happens if either party fails to meet their obligations.
This document protects both sides. If a dispute comes up later, whether it’s about a missed deadline, unfinished work, or a disagreement over costs, a signed contract gives you something concrete to fall back on.
10. Assess Professionalism and Reputation
How a contractor conducts themselves before you’ve even signed anything tells you a lot about how they’ll behave once the project is underway. Do they show up to meetings on time? Do they provide documentation without being chased for it? Do they take the time to understand your vision and offer honest input, rather than just agreeing to everything to win the contract?
Check online reviews, ask around in your area, and pay attention to how the contractor’s past clients speak about them. A strong reputation is built over years of consistent, honest work, and it’s usually a reliable indicator of what you can expect.
Common Mistakes Property Owners Make When Hiring a Contractor
Beyond the ten tips above, a few recurring mistakes are worth calling out specifically because they come up so often:
| Mistake | Why It Costs You |
|---|---|
| Hiring based on the lowest quote alone | Leads to inferior materials, mid-project cost increases, or an incomplete build |
| Skipping the site visit to see past work | Photos hide poor workmanship that’s obvious in person |
| Not putting agreements in writing | Leaves you with no recourse when disputes arise |
| Failing to check NCA registration | Increases risk of non-compliant construction and legal issues later |
| Not budgeting for contingencies | Most projects run 10-15% over initial estimates due to unforeseen site conditions |
| Choosing a contractor with no relevant experience | Mismatched expertise leads to design and structural errors |
Why Choosing the Right Contractor Matters
The right contractor doesn’t just build a structure, they protect your investment. Quality workmanship reduces long-term maintenance costs. A well-managed timeline means you’re not paying rent elsewhere longer than necessary or losing rental income from a delayed apartment block. Transparent costing means no unpleasant surprises halfway through the project.
On the other hand, the wrong contractor can turn a straightforward build into a years-long headache, with costs spiraling well beyond the original budget and, in the worst cases, structural problems that show up only after you’ve already moved in.
Why Property Owners Choose Jowach Construction
At Jowach Construction, we’ve built our reputation on the same principles we’ve outlined above, because we know firsthand how much damage a bad contractor can do to a family’s finances and peace of mind.
- Fully Registered and Compliant — We handle NCA registration and all necessary county approvals, and we’re happy to provide documentation upfront, no hesitation, no excuses
- Transparent, Itemized Quotations — Every client receives a detailed Bill of Quantities before any ground is broken, so you know exactly what you’re paying for
- Proven Track Record — From residential bungalows and maisonettes to multi-unit apartment blocks and bedsitter developments, we’ve delivered projects across Kenya that our clients are proud of
- Clear Communication Throughout — We keep clients updated at every stage, including regular photo and video progress reports for clients building from the diaspora
- Written Contracts, Always — Every project starts with a signed agreement outlining scope, timelines, payment terms, and responsibilities, protecting you from day one
- On-Site Supervision — Our team is present at every critical stage of construction, from foundation inspection to final finishes, ensuring quality control throughout
- Safety-Conscious Site Management — We follow proper safety protocols to protect our workers, your property, and everyone around the construction site
Frequently Asked Questions
1. How do I verify a contractor is NCA registered in Kenya?
Ask the contractor directly for their NCA registration certificate, and where possible, verify it through the NCA’s official channels. A legitimate contractor will never hesitate to provide this.
2. What should be included in a construction quotation?
A proper quotation should be an itemized Bill of Quantities covering substructure, superstructure, finishes, electrical, plumbing, and any other project-specific costs, broken down with quantities and unit prices, not a single lump-sum figure.
3. Is the cheapest contractor quote always a bad sign?
Not always, but it should raise questions. Compare what’s included in the scope, the materials specified, and the contractor’s track record before assuming a low quote is a good deal.
4. Why is a written contract so important in construction?
A written contract protects both you and the contractor by clearly documenting the scope of work, timelines, payment terms, and responsibilities, giving both parties something concrete to refer back to if disputes arise.
5. Can Jowach Construction help clients building from outside Kenya?
Yes. We regularly work with diaspora clients, providing detailed progress reports, photos, and video updates throughout construction so you can monitor your project from anywhere in the world.
6. How long does it typically take to get a quotation from Jowach Construction?
After an initial site visit and consultation, we typically provide a detailed quotation within a few days, depending on the complexity and scale of the project.
Ready to Build With a Contractor You Can Trust?
Choosing the right contractor is the single most important decision you’ll make in your construction journey. At Jowach Construction, we bring registration, experience, transparency, and a proven track record to every project we take on, so you can build with confidence instead of anxiety.
📞 Call/WhatsApp: +254 704 264302
📧 Email: Info@jowachconstuction.co.ke
🌐 Website: jowachconstruction.co.ke
Get in touch today for a free consultation and discover why property owners across Kenya trust Jowach Construction with their most important investments.
