There are a few ways you can go about doing this. The first way is to get your business into trade shows and do some old school marketing. More exposure for your company only increases your chances of getting in with a big company. Ideally there will be a buyer for home depot. In case you did not know what a buyer is, they typically work on the corporate side of businesses. Their primary job is to introduce new products into their company's stores, and to manage the ones that are already in the stores. If a buyer thinks that your product will sell better than the competition, then they will bring your product on. There are a few variables that can go along with this. Feel free to call for more info on that.
The second way is to file for a new product submission. You have to contact home depot and request the form. They will ask various questions such as financials of your business ( costs, retail costs, margins, logistics etc. ) Once submitted, it will take 60 days for a representative to reach out to you.
Feel free to reach out to me with any question. I am always available to help.
Set aside a budget of ~500 USD.
1. Identify source URLs where the contact info of Real Estate Builders & Developers sits.
2. Go to apifier.com
3. Hire them to crawl construction builder and real estate website developer URLs. You can grab the phone number and email address of many of them this way.
4. Use mailshake.com to do email blasts to these folks for biz dev.
5. Rinse and repeat for different geographies.
Based on other answers here, it seems Home Depot has a standardized process for considering new products, but there are always ways to increase your chances. Do you know leaders from other companies that have their products there? Do they work with a buyer closely who they can introduce you to? Would their endorsement help your application chances? If you are not already connected with someone whose products are sold there, can you build a relationship with someone?
Although I am sure their decisions are made mostly by the numbers, it never hurts to have the endorsement of someone they trust, or to be the partner who established a relationship today and is remembered when a need arises tomorrow.
As for other partners like builders and developers, your strategy to that would depend a lot on your market. Are you nationwide, with many thousands of companies to target? You might need a solid advertising or content marketing strategy. You may need a lead generation strategy with a solid and optimized follow up process.
Are you local with only 30 companies to target? You need a more refined strategy for approaching them and building relationships, probably in person.
Interviewing your existing customers is a good way to find out how they think, where they go to locate information when they're buying a service like yours, what made them want to work with you, whether they know anybody else who might benefit from your service, etc.
Happy to talk partnership strategy anytime.