Markham is having a summer. If you have spent any time scrolling listings between Unionville's Heritage Main Street and the newer builds tucked behind Highway 7 near Warden, you already know what I mean. The inventory is there, over 2,000 active listings right now, but so is the competition, and that combination is exactly the kind of market condition that makes buyers do things they will regret come September.
Let me give you the real picture for July 2026. The average price is sitting at $1,359,840, and homes are spending around 61 days on market before moving. That 61-day average is actually useful information for you. It tells you this is not a frenzy where you have 48 hours to decide. You have time. Use it.
The problem is that summer itself works against you when it comes to the physical condition of a house. I want you to understand this clearly because it affects every single showing you go to right now. The heat and low humidity of July dry out the evidence. A basement that leaked steadily from March through May can look completely fine today. The efflorescence gets dusty and faint. The water staining on drywall lightens. A slow roof leak that was leaving a wet shadow on the ceiling last spring just looks like an old stain now, easy to wave away. The house is wearing its best outfit for summer showings, and you are the one who has to figure out what is underneath.
Wondering what risks apply to your home?
Get a free risk assessment for your address in under 60 seconds.
That is not meant to scare you off Markham. This is a genuinely great place to buy. But the seasonal masking problem is real, and it matters more here than in a lot of other markets because of what the housing stock actually is.
The bulk of what you are looking at in Markham, whether it is the Greensborough community near Swan Lake, the older parts of Thornhill Woods bleeding across the boundary, or the established streets in Milliken Mills, was built in the 1990s and 2000s. That era has a specific set of patterns that I see repeat again and again in homes of that age. The original builder-grade roof shingles from a 1995 or 1998 build are either already replaced or very close to the end of their second life. In Markham homes of this era I commonly find HVAC systems that have never been serviced properly, polybutylene or early CPVC plumbing that the original owners never thought twice about, and insulation in the attic that was compliant when it went in but has been disturbed by years of amateur potlight installations and bathroom fan venting dumped straight into the attic cavity.
About 14 percent of the homes on the Markham market right now fall into what I would consider a higher-risk category. That is the older pre-1980 stock, the postwar bungalows and early split-levels you still find along older corridors in the southern part of town. Those homes carry genuinely different concerns, knob-and-tube wiring that may still be live behind finished basement ceilings, galvanized or even lead supply lines in the older sections, and foundation systems that were never designed to handle finished living space below grade. When I see those listings, the inspection conversation starts in a very different place.
Here is where the cost reality lands for Markham specifically at this price point. A mid-century home in the $1.3 million range with a stone or rubble foundation that needs waterproofing from the exterior, a proper membrane and drainage tile, you are looking at $30,000 to $50,000 depending on the perimeter length and site access. That is not a scare number, that is what contractors in York Region are actually quoting right now in July 2026. A full knob-and-tube replacement in a two-storey home in Milliken or Unionville runs $18,000 to $25,000 after you factor in the ceiling and wall repairs. A roof replacement on a 2,500 square foot Markham home with standard architectural shingles is landing between $14,000 and $19,000 this summer with material costs where they are.
None of those numbers are impossible to absorb. But you need to know they exist before you are sitting at a table signing, not after.
The risk score for Markham overall sits at 21 out of 100, which honestly is a reasonable number. This is not a distressed or neglected housing market. The city has been well maintained, the neighbourhoods are established, and the ownership culture here tends toward pride of maintenance. But 21 out of 100 is not zero. There are real issues hiding in these homes, and the ones that bite hardest are always the ones the seller genuinely did not know about either.
I want to say something directly about waived conditions because July 2026 is the time of year when that pressure is going to be highest. Even with 61 days on market being the average, individual listings in desirable pockets like Angus Glen or the Cornell community near the hospital hub can still attract competitive offers quickly. I have seen buyers in this market waive the inspection condition and then call me after closing, walking through the house for the first time with full ownership, suddenly seeing everything differently. Please do not do that. A pre-offer inspection costs you a few hundred dollars and a morning. The alternative math is not in your favour.
The Markham market in July 2026 is genuinely navigable. The inventory gives you options, the days on market give you breathing room, and the overall condition profile of the housing stock is not alarming. But every one of those advantages disappears the moment you skip the inspection or rush because you are afraid of losing a house. The right house will not punish you for doing it properly.
If you are buying in Markham this summer, reach out and let's book your inspection before your offer goes in. A pre-offer inspection is always the cleaner way to do this, but if you are already under contract, book now. The summer window moves faster than it looks from the outside.
Ready to get your Markham home inspected?
Aamir personally inspects every home. Same-week availability across Ontario.